I usually keep 1 pay to play, and a few ftp games installed. Currently, no ptp ones though. Next one will be kotor.
I just reinstalled City of Hero's yesterday. Only logged on briefly to go through my game settings, and see how it was limited. The only thing that stands out of your limited to 5 global character slots, and you have to buy more of them. At least it let me choose which ones to unlock. Nothing else jumped out at me as being locked.
I also dabble in Runes of Magic, Perfect World, and recently, Forbidden World.
I played Atlantic Online for quite some time. Stopped when it started getting really grindy, which was level 95 or so.
I played Allods for a bit. Didn't really like it though. Don't think I made it past level 10.