I don't get what's so addictive about MMOs.
Oh boy, I can waste hours of my life repetitively mashing buttons so I can get the same set of armor as half the people my level. Oh yeah, and not to mention the hours wasted mashing buttons just so you can GET to that meaningless level.
And in the particular case of WoW, none of it even matters in-game because the whole game is stupid kinds of easy.