Just say no to MMORPG's, people.
Why? I played Guild Wars for 5 years (have a 6 year account, but haven't played in ages) and managed to have a social life, get through college, spend time with family etc. It's all about keeping things in perspective. MMO's can become seriously addictive to people, but if you put the important stuff first then there's no real problem.
I much prefer RPG's and MMO's (well...Guild Wars) to other games. More kids today are getting addicted to FPS's anyways.