I've quit and come back a couple times. Just started up again a few days ago because some local friends of mine are playing too, and it's fun playing together. Also I come back because the fact of the matter is that it is the all-around best-made MMO out there. Gripe about it however you want, it still beats all other MMOs (and I've put serious play time into about 9 others, so I have a pretty good idea what I'm talking about). Unfortunately, Blizzard is all too aware of this fact and it's hard not to feel like all they see when they look at me is a money-dispensing, obedient lapdog.