I admit to having my ups and downs with WoW but I always go back to it. No other MMO has the same effect on me as WoW. I always end up leaving because I would get burned out or I would like to try a different game but I always end up going back at some point. WoW is home. That’s what WoW has going for it. You may get tired of it you may get burned out but you always find yourself going back home.
WoW has this aspect of being the game you think of when you hear MMO. It has established itself so solidly into the industry that the only thing that can kill WoW is WoW…Well Blizzard but yea you get my point.