Besides matching the profile of your customer with the demographics of the publication, it's also important that you match your selling prices within the average price range of everything else offered in that publication. To achieve success you must know your product, profile your prospective buyer, design advertising that appeals to the self-interests of that specific kind of buyer, and place your ads in publications reaching those prospects. If you're trying to sell by direct mail send your offers to prospective buyers - not sellers of the same type of materials you're attempting to sell. Very few people recognize a legitimate opportunity, even when you hit them over the head with it. It must somehow be different and better than all the others, particularly if your product or a similar one is being advertised in the same publication by other mail order dealers.
Nothing beats originality.
Write your ads from a different angle. Eliminate the customer's fears of being taken or ripped off. Picture yourself in your prospective customer's shoes, and give him real reasons to send his money to you. Don't be too determined to sell your primary product from your ad. In response to all the takers of this Free Offer include the complete sales letter, brochure, order form, and self- addressed return reply envelope with the booklet you send out.