I playd WOW for about a year... I've always been a huge fan of Rpgs so Mmorpgs were a natural next step...
Honestly to me its the same as us old school players who used to play first person shooters offline (doom, wolfenstien, quake)... and now play on-line first person shooters.

I never let it consume my life and playd it less than Ive play counterstrike... Honestly though after a year I just got bored with it.

That's how a lot of things are... look at drugs and guns.
Some people can handle them... Some People can't.