But when is it a good time to stop?
Everything eventually gets old and dies. Yes, one day our beloved WoW will no longer exist; even though that might be a couple decades from now (although I have my doubts WoW will ever truly go off-line, but that's another article). What I want to be sure happens is that I leave this activity I love so much on a high note – and not leave when it's become a pain and something that I'll look back disfavorably upon.
Right now my life allows me to raid. I have classes and WoW Insider work during the day, and at night I have time to raid for a few hours and hang out with the girlfriend and other folks as well. That strikes a good balance in life – allowing both things that I want to do by myself (WoW), and things that I want do with others (girlfriend, friends, etc...)