People who've never played MMO's just don't understand how immersive those games are.
We're talking about a completely customizable game with endless character development and no real way to "beat" the game.
With MMO's, you're never finished.
I almost regret getting my wife into it, who then got her brother into it.
Some good did come out of it though. Now we workout for an hour everyday before logging on. We made a pact to do that so we don't get get chubby and out of shape. So far so good.