I've discovered if I don't group, I play much less compulsively and for shorter periods of time. I used to play EQ and got very involved with raiding and so forth. I knew this time with WoW, with my job and being now married, there was no way I could dedicate the same amount of time without creating havoc and losing what's most important to me. I am a member of a good guild and enjoy the company of people there, and I have soloed my gnome warlock up to 60. I group only very rarely. I'm alliance on a PVP server overrun by belfs and I'm lousy at PVP but I do enjoy it quite a bit all the same, and I'm getting better. I do plan to raid a little with my guild once I get to 70, so I'll set aside some time specifically for that, but otherwise family and job and my health always come first, and I enjoy my game much more that way. It's a great way to relax and spend some "private" time just letting my brain decompress.