Terry Collins has already cited one example of a clash occuring between vendors with a grassroots organisation stuck in the middle. These events will be heavily represented by vendors with grassroots organisations struggling to be make an appearance because of the dollars involved. Instead they will establish local user networks and rely on the mailing list, meeting and other resources of grassroots organisations to learn what they don't otherwise know. Users have needs for community have needs for education have needs for support have needs for access to products and services aim to promote their own survival and growth. Usergroups aim to meet the needs of all users.
Vendors aim to meet the needs of users prepared to pay money.