I have never played any Pay to Play MMORPGs but there is a long list of ones I have played ranging from MUDs, MMORPGs, MMOFPSs, Text Based RPGs, and so on. Last one I played was EUDemons Online. For Years, though, I was into MU Online. But now that an American company owns it... It has been ruined.
I have seen someone mention it, we should seriously gang together in a preferably free MMORPG and make a clan/guild called the WootSquad or such and Own the place. We would be Un-Stoppable. We could get someone to Host a Team Speak Server (I would but I already host a Team Fortress Classic server) and just be the Invincible Anime Force from Hell.