The Daily Grind: MMOs at launch

More than any other genre, the MMO you play on launch day and the MMO you see a few months down the line may be completely different. Perhaps the launch release was bug-ridden or perhaps the developers leaned towards customer demands — but whatever the cause, MMOs are constantly in development and always changing. With little for certain in an MMO, when do you decide to start playing? Do you grab your game at launch, prepared to face bugs and balance issues, do you wait a few months for everything to settle down, or do you wait until it's a whole new game?