I happen to be the president of Serbian Youth Travel and Hostel Association (www.sytha.org) which was pretty inactive last year, due to lack of funding from the government and most important due to lack of hard work. The thing is, i am against paying any amount for membership fee, and i have 4 hostels (3 in Belgrade an 1 in Budva, Montenegro and i am director of big travel agency) so it pretty hard for me to do it by myself.
My point is that for some association or network there should be lot of hard work involved to make something happen, and without membership fee you can only count on other hostel owners to give their time and energy to put something in place. That said i think it is unreasonable to have all hostels in the association benefiting from other people work. That leave us chosen few to get all the perks when they come, so in my opinion there should be some restrictions who can get in a network.