Runescape members is indeed great. There are other games i would and have sent money on, example: halo 2 and xbox live.
I recently got mercenaries wich that game ill be playing for months:)
Also, i no longer have ps2 so i cant play grand theft auto san andreas but i loved the GTA series and i played them for months.
Although i couldent say i would if i didnt cheat on them:) just because thats what makes all shooters fun is cheating. Unlike runescape, runescape has realy no need for cheating but many would do it if they had the chance.