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                                                                  EXHIBIT 10.50

Member Name:                                        Member #:
            ----------------------------------               ------------------

                              MEMBERSHIP AGREEMENT
                             (NATIONAL MEMBERSHIP)

                          RETAIL INSTALLMENT CONTRACT

1. DEFINITION OF TERMS. "You" and "your" refer to the individual purchaser or
purchasers who have signed this Agreement. "We", "us", and "our" refer to
Thousand Trails, Inc. ("Trails") and National American Corporation and its
subsidiaries ("NACO"). "Disclosure Statement" means the booklet containing
information on our membership program that was attached to this Agreement and
delivered to you at the time of your purchase. "Preserves" mean the
recreational campground resorts owned or operated by Trails and the
recreational campground resorts owned or operated by NACO for the benefit of
their respective memberships. "Member Rules" mean the rules and other terms set
forth in our Campground Directory, which govern the use of the preserves by our
members. A copy of our Campground Directory was delivered to you at the time of
your purchase. In the event of any conflict between the terms of this Agreement
and the Member Rules, the terms of this Agreement shall control.

2. WHAT YOU ARE PURCHASING. You are purchasing a NATIONAL CAMPING MEMBERSHIP,
which entitles you to use all Trails and NACO preserves on the terms set forth
herein. The preserves that are currently available for use by members are
described in the Disclosure Statement.

The initial term of your membership is three (3) years following the date of
your purchase. After this initial term, the term of your membership will
automatically renew for additional one-year periods ("renewal terms" herein)
unless you notify us in writing of your desire to terminate your membership at
least 60 days prior to the expiration of the initial term or renewal term, as
the case may be.

3. TERMS OF MEMBERSHIP. During the term of your membership, you are entitled to
use all preserves that are designated by Trails and/or NACO as available for
use by members, subject to the following:

You must use the preserves in accordance with this Agreement and the Member
Rules. We have Member Rules regarding, among other things: (a) advance
reservation or first-come, first-choice space arrangements; (b) length of stay;
(c) frequency of use; (d) charges for benefits or services, including rental
units, pet fees, food services, goods purchased, gasoline, and other services
made available by us from time to time; (e) restrictions on guest visits,
including number of guests allowed and guest fees; (f) length of season for use
of the preserves; (g) hours of operation of facilities; (h) use of preserves by
non-members in connection with programs sponsored by us, including without
limitation, our marketing and sales programs, SuperHost group rentals,
charitable functions, community groups and other public use scheduled so as not
to conflict with member use; and (i) such other matters and restrictions on use
as may be reasonably necessary to ensure maximum availability of any preserve
for use by our membership as a whole. We reserve the right, in our sole
discretion, to add, modify, or delete Member Rules from time to time as we may
deem appropriate. Please consult the current Member Rules if you have questions
regarding use of the preserves.

Your membership entitles you to unlimited day use and unlimited overnight
camping in your own recreational vehicle or tent (subject to length of stay
restrictions) at the preserves. You may stay at one preserve up to 14
consecutive nights at a time. If you stay at any preserve for more than four
consecutive nights, you must wait for seven nights before you stay again at ANY
preserve. You may make reservations to use the preserves 90 days in advance of
your intended date of arrival.

It is your responsibility to use the preserves in a safe and reasonable manner
and to observe the Member Rules. You are also responsible for the conduct of
your children and guests and you are liable for all damages caused by the
negligent or reckless use, or intentional misuse, of the preserves by you or
your children.

The location of, and facilities and amenities at, all of Trails' and NACO's
preserves are described in the Disclosure Statement and are subject to change
by Trails and NACO. Preserves and facilities may be added to or subtracted from
those which existed at the time of



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execution of this Agreement. Trails and NACO are under no obligation to
increase the number of or improve existing preserves. Trails and NACO reserve
the right to sell memberships with rights and privileges different from your
membership.

Your membership constitutes merely a contractual license to use the facilities
provided by Trails and/or NACO from time to time at the preserves where you
have membership rights. Such preserves and facilities are subject to change as
provided in this Agreement and your membership does not constitute an interest
in, is not secured by, and does not entitle you to any recourse against any
real property of Trails or NACO, nor are you entitled to vote on any aspect
relating to the businesses of Trails or NACO or to share in any of the profits
of the businesses of Trails or NACO. The application and use of all amounts
paid by you under this Agreement, including your purchase price and annual
dues, is within our sole discretion.

You may not possess, hold, or own more than one membership in either Trails or
NACO, and if you acquire more than one membership under any circumstances, we
will terminate all memberships held by you in excess of one.

4. TRANSFERABILITY. Your National Membership is transferable, subject to the
following limitations. A National Membership: (a) may only be resold for a
price which does not exceed the price paid by you for your membership plus a
reasonable transfer fee as set forth below; (b) may be transferred only if the
purchase price for your membership is paid in full and your annual dues are
current at the time of transfer; and (c) may be transferred only if your
transferee agrees to accept the rate of annual dues and use fees charged by us
on new sales of similar memberships and the Member Rules in effect at the time
of transfer. A National Membership cannot be divided and, if you transfer one,
or if one is transferred by operation of law, as in the event of divorce,
inheritance, descent, or attachment, all membership privileges must be
transferred together.

In connection with any transfer of a National Membership, we will charge a
reasonable transfer fee, which is currently $250 if the membership is
transferred to a member of your immediate family and $750 if the membership is
transferred to anyone who is not a member of your immediate family. For
purposes of this Agreement, the members of your immediate family are your
lineal ascendants and descendants (i.e., your parents and grandparents and your
children and grandchildren). A transfer may be effected only with our prior
written consent, which we will not unreasonably withhold. A transfer will not
become effective until: (a) you and your prospective transferee have
represented to us in writing that the transfer is in compliance with the
foregoing terms; and (b) your prospective transferee has entered into a new
membership agreement.


We will not purchase your membership and we can provide no assurance that we
will be able to locate a buyer for your membership in the event it is
transferable and you decide to sell it. In addition to our sale of new
memberships in company sales programs, we currently offer a resale program
pursuant to which we attempt to resell previously-owned memberships on behalf
of the selling member. In order to participate in our resale program, the
selling member must have paid the purchase price of his membership in full and
must be current on his annual dues. We reserve the right to modify or
discontinue our resale program at any time without further notice and without
incurring any legal liability for the modification or discontinuation.

You may not transfer or sell your membership or assign, rent, loan, or
otherwise alienate your membership, temporarily or permanently, in any manner
other than as provided in this section. Any transfer in violation of this
prohibition shall be null and void. In the event of any dispute over ownership
of your membership, we may, without liability to any person and without
releasing you from your financial obligations to us, suspend and refuse
membership privileges to all persons claiming rights to the membership until
they have resolved the dispute in a manner satisfactory to us and communicated
the resolution to us in writing.

5. DEFAULT AND REMEDIES. Time is of the essence of this Agreement and any of
the following events will be "an event of default":

        (a)     Your failure to make any payment under this Agreement when due,
                including but not limited to the payment of the application
                fee, purchase price, finance charge, and annual dues, or

        (b)     The falsity of any representation made by you in this Agreement
                or your credit application, or

        (c)     A material breach by you of any provision of this Agreement or
                the Member Rules.

Should any "event of default" occur, we may immediately suspend your membership
rights. In addition, upon the occurrence of any "event of default", we may,
upon 30 days' written notice to you, declare the entire unpaid principal
balance of the purchase price, together with the finance charge and annual dues
accrued to the date of default, immediately due and payable. Moreover, we may



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continue to collect annual dues from you as they accrue for the balance of the
initial term or renewal term, as the case may be. In the alternative, we may,
upon the occurrence of any "event of default", and upon 30 days' written notice
to you, terminate this Agreement and your membership. If we terminate this
Agreement and your membership because of your default, which we may, but are
not required to do, we shall have all remedies provided by law. If any payment
required by this Agreement is not made in full within ten days of its due date,
you agree to pay us a late charge in the amount set forth in paragraphs 11 and
12. In addition, where permitted by law, reasonable collection charges will be
imposed if any payment required by this Agreement is not made in full within 30
days of its due date and collection efforts are made. If permitted by law, a
reasonable fee will also be imposed for processing any check or other payment
that is returned unpaid. If this Agreement is referred to an attorney for
collection after your default, or if a legal action is commenced to enforce or
declare the meaning of any provision of this Agreement, the prevailing party
will be awarded its reasonable attorney's fees and costs, including fees and
costs incurred in both trial and appellate courts.

6. ASSIGNMENT. We may sell or assign this Agreement, and any such assignment
may vest in our assignee all of our right, title, and interest in this
Agreement, and all payments required to be made by you under this Agreement may
be required to be paid to such assignee. No transfer, extension, or assignment
of any interest under this Agreement will release you from your obligation to
make all payments required under this Agreement.

7. CREDIT APPLICATION AND REPORTING. If this Agreement provides for an
installment purchase, the Agreement may be rescinded by us, in our sole
discretion, unless your application for credit is approved by our corporate
office. If your credit application is not approved, we will notify you in
writing within 30 days. You agree that we may from time to time seek and
receive credit related information about you from others such as stores, other
creditors, and credit reporting agencies. You also agree that we may furnish on
a regular basis credit and experience information regarding your account to
others seeking that information. You represent that all information supplied to
us is true, that you are of legal age, that the address set forth on page 4 of
this Agreement is your permanent residence address, and that you are acquiring
this membership solely for the personal enjoyment of you and your family.

8. MISCELLANEOUS. This Agreement contains the entire agreement between you and
us. No waiver or modification of any of the terms or conditions of this
Agreement shall be effective unless in writing and signed by you and an
authorized representative of our corporate office. The terms of this Agreement
will benefit and bind the respective heirs, executors, administrators, legal
representatives, successors, assigns, and transferees of the parties. Any
provision of this Agreement which proves to be invalid, void, or illegal will
not affect, impair, or invalidate any other provision of this Agreement and
such other provisions will remain in full force and effect.

9. APPLICATION FEE. An application fee of $150.00, plus applicable taxes, is
payable as set forth in section 11. This application fee is designed to cover
the costs we incur in processing your membership application and related
paperwork, setting up your membership in our computer system, and issuing you a
membership card that works with our CIS system.

10. PURCHASE PRICE. The purchase price for your membership is $_______________,
plus applicable taxes, and is payable as set forth in section 11.





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11. METHOD OF PAYMENT. (CHECK ONLY ONE AND INITIAL.)


_________________ [ ] I desire to pay the total application fee and purchase
(Buyer's Initials)    price for my membership of $_____________________________
                      in full on the day of purchase.

_________________ [ ] I desire to pay the total application fee and purchase
(Buyer's Initials)    price for my membership in installments, as follows:
                      (IF CHECKED, COMPLETE THE BALANCE OF SECTION 11.)

If you are financing, a cash down payment of $______________ is due on the day
of purchase. The remaining balance of $__________________ will accrue interest
on the declining principal balance at the rate of 14.9% per annum, and will be
payable in [ ] 12 (twelve), [ ] 24 (twenty-four), or [ ] 36 (thirty-six) equal
consecutive monthly installments of $___________________ each, including
interest. These payments will commence on the __ day of ________________, 19__,
and will continue on the same day of each month thereafter until the principal
balance and accrued interest thereon are paid in full. All payments are stated
and must be made in U.S. Dollars.

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<CAPTION>
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<S>                         <C>                       <C>                        <C>                       <C>
ANNUAL PERCENTAGE RATE      FINANCE  CHARGE           AMOUNT FINANCED            TOTAL OF PAYMENTS         TOTAL SALE PRICE
The cost of your credit     The dollar amount the     The amount of credit       The amount you will have  The total cost of your
as a yearly rate.           credit will cost you.     provided to you or on      paid after you have paid  purchase on credit
                                                      your behalf.               all payments as           including your down
                                                                                 scheduled.                payment of
                                                                                                           $
                                                                                                            ------------------
              %             $                         $                          $                         $
--------------               ----------------          ------------------         ------------------        ------------------

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Your payment schedule will be:      Number of Payments:
                                                       ----------------------------------

                                    Amount of Monthly Payment:  $
                                                                 ------------------------

                                    Payments are due monthly beginning:
                                                                       -------------------------

LATE CHARGE: If a payment is late by ten or more days, you will be charged 5% of the delinquent installment or $5.00, whichever is
less.

PREPAYMENT: If you pay off early, you will not have to pay a penalty. See the other provisions of this Agreement for additional
information about nonpayment, default, our right to accelerate the maturity of this obligation, and prepayment.
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ITEMIZATION OF THE AMOUNT FINANCED:

(1)  Application Fee                                        $
                                                             ---------------

(2)  Purchase Price of Your Membership                      $
                                                             ---------------

(3)  Less Down Payment                                      $
                                                             ---------------

(4)  Amount Financed (Sum of items 1 & 2, less item 3)      $
                                                             ---------------





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12. ANNUAL DUES. During the initial term and each renewal term of your
membership, you agree to pay us annual dues in the amount of $349.00 per year.
Applicable taxes, if any, will be added to your annual dues. BY SIGNING THIS
AGREEMENT, YOU ARE MAKING A LEGAL COMMITMENT TO PAY ANNUAL DUES FOR A MINIMUM
OF THREE YEARS.

Your annual dues will be prorated for the period from the date of this
Agreement through December 31 of the year in which this Agreement is executed.
Thereafter, your annual dues are payable in full on or before January 1 of each
year. As a convenience, you may pay the annual dues in two semi-annual
installments or four quarterly installments. Each of the installment payments
will be subject to a processing fee in an amount set by us. This processing
fee, which is subject to increase, is currently $5 for each installment
payment. If payment of your annual dues is late by ten or more days, you will
be assessed a late charge in the maximum amount permitted for late charges
under the retail installment sales law in effect in the state of your
residence. Your annual dues are stated and must be paid in U.S. Dollars.

DUES INCREASES. The amount of your annual dues may be increased each year, upon
thirty (30) days advance written notice, by the percentage increase in the
Consumer Price Index for the calendar year prior to the year for which the
increase is being made. Consumer Price Index means the consumer price index for
all urban consumers as reported by the United States Department of Labor,
Bureau of Labor Statistics.




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                                     NOTICE

ANY HOLDER OF THIS CONSUMER CREDIT CONTRACT IS SUBJECT TO ALL CLAIMS AND
DEFENSES WHICH THE DEBTOR COULD ASSERT AGAINST THE SELLER OF GOODS OR SERVICES
OBTAINED PURSUANT HERETO OR WITH THE PROCEEDS HEREOF. RECOVERY HEREUNDER BY THE
DEBTOR SHALL NOT EXCEED AMOUNTS PAID BY THE DEBTOR HEREUNDER.

NOTICE TO THE BUYER: (1) DO NOT SIGN THIS AGREEMENT BEFORE YOU READ IT OR IF IT
CONTAINS ANY BLANK SPACES TO BE FILLED IN. (2) YOU ARE ENTITLED TO A COMPLETELY
FILLED IN COPY OF THIS AGREEMENT. (3) YOU CAN PREPAY THE FULL AMOUNT DUE UNDER
THIS AGREEMENT AT ANY TIME. (4) IF YOU DESIRE TO PAY OFF IN ADVANCE THE FULL
AMOUNT DUE, THE AMOUNT WHICH IS OUTSTANDING WILL BE FURNISHED UPON REQUEST. (5)
EACH PERSON SIGNING THIS AGREEMENT AS A MEMBER SHALL BE JOINTLY AND SEVERALLY
LIABLE FOR ALL OF YOUR OBLIGATIONS. (6) YOU ACKNOWLEDGE THAT YOU HAVE READ AND
RECEIVED A COPY OF THIS AGREEMENT, THE DISCLOSURE STATEMENT AND OUR CAMPGROUND
DIRECTORY.

                                    YOUR INITIALS              /
                                                 ------------------------------

IF YOU HAVE BEEN PERSONALLY SOLICITED, AND YOUR AGREEMENT OR OFFER TO PURCHASE
IS MADE AT A PLACE OTHER THAN OUR PLACE OF BUSINESS, YOU MAY CANCEL THIS
AGREEMENT AS SET FORTH BELOW.

YOU, THE BUYER, MAY CANCEL THIS TRANSACTION AT ANY TIME PRIOR TO MIDNIGHT OF
THE THIRD BUSINESS DAY AFTER THE DATE OF THIS TRANSACTION. SEE THE ATTACHED
NOTICE OF CANCELLATION FORM FOR AN EXPLANATION OF THIS RIGHT.

         CHECK ONE:     APPLICABLE [ ]       NOT APPLICABLE [ ]

EVEN IF THE FOREGOING RIGHT OF CANCELLATION IS NOT APPLICABLE, YOU MAY CANCEL
THIS AGREEMENT AS SET FORTH BELOW.

                             NOTICE OF CANCELLATION

YOU MAY CANCEL THIS CONTRACT, WITHOUT ANY PENALTY OR OBLIGATION, WITHIN THREE
BUSINESS DAYS FROM THE DATE THE CONTRACT IS EXECUTED. TO CANCEL THIS CONTRACT,
MAIL OR DELIVER A SIGNED AND DATED COPY OF THIS CANCELLATION NOTICE OR A COPY
OF THIS CONTRACT IF IT CONTAINS THE CANCELLATION INSTRUCTIONS, OR ANY OTHER
WRITTEN NOTICE, OR SEND A TELEGRAM TO THOUSAND TRAILS, INC., AT 2711 LBJ
FREEWAY, SUITE 200, DALLAS, TEXAS 75234; ATTENTION:
CONTRACT PROCESSING, NOT LATER THAN MIDNIGHT OF
                                .
--------------------------------
          (Date)


I HEREBY CANCEL THIS TRANSACTION                                        .
                                 ---------------------------------------
                                                 (Date)

                                               --------------------------------
                                                    (Purchaser's Signature)

WITH THE NOTICE OF CANCELLATION, OR SEPARATELY IF A TELEGRAM IS SENT, YOU MUST
RETURN THE ORIGINAL MEMBERSHIP CAMPING CONTRACT, MEMBERSHIP CARD AND ALL OTHER
EVIDENCE OF MEMBERSHIP TO THE SELLER. YOU SHOULD PROMPTLY RETURN THESE
DOCUMENTS WITH THE NOTICE OF CANCELLATION, OR SEPARATELY IF A TELEGRAM IS SENT.
FAILURE TO SEND THE DOCUMENTS PROMPTLY COULD DELAY YOUR REFUND. YOU SHOULD
RETAIN FOR YOUR RECORDS ONE COPY OF THE CANCELLATION NOTICE, OR A CARBON OF THE
CONTRACT WHEN IT PROVIDES THE CANCELLATION INFORMATION, OR OTHER WRITING
SHOWING INTENT TO CANCEL. MAILING BY ORDINARY MAIL IS ADEQUATE BUT CERTIFIED
MAIL RETURN RECEIPT REQUESTED IS RECOMMENDED.



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NAME:                               ADDRESS:
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CITY:                                STATE:             ZIP:
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EXECUTED THIS                        DAY OF                            19
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                                                                              Membership Campground Operator:

<S>                                                               <C>
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           Purchaser's Signature                                  -----------------------------------------------------
                                                                                 2711 LBJ Freeway, Suite 200
                                                                                 Dallas, Texas  75234
------------------------------------------------
           Purchaser's Name (please print)


------------------------------------------------                  -----------------------------------------------------
           Purchaser's Signature                                                 Authorized Signature



------------------------------------------------                  -----------------------------------------------------
           Purchaser's Name (please print)                                       Preserve
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