I don't want it. I grew up with only access to games in arcades and I hated having to pay to play. The whole point of computers and consoles was to be able to pay once, play forever.
Well P2P games are usually subscription based, Where you pay x amount per month/day/year like WoW and other games like that. With MMOs, I doubt anyone has ever seen or even heard of a game which wasn't F2P or P2P with one payment.