I have a level 50 MA/Regen scrapper and then a whole bunch of other toons I almost never play, all on Freedom. Well, I don't really play any of them anymore. I was considering playing my Mastermind or my Brute during double XP weekend but I really don't think I'm going to continue. I kind of did it all with my 50 (all the task forces, all the badges, etc.) and I just don't want to do it all again, especially since there's no end-game.
Somehow though it's really hard for me to just close my account, especially since I DID get to 50 and never dreamed in a million years I actually would. I'm not that hardcore of a gamer, although I'm creeping up on 60 in WoW! (My main is 55 so far.)