I dunno the problem I have with WoW, and mmo's in general, is once you hit max level theres only 2 things to do. Raid, or PvP. I don't really like PvP in mmo's and I dislike raiding. Why should I be forced to group with 9-19 other people to be able to learn more about the story and have fun. Not to mention the amount of time you have to dump into raiding. I prefer a more personal group like a 5 man. Or in D3's case a 4 man which will be perfect.
So that's why I cancelled my account. Story of my WoW life. Got 60, sat and did nothing. Got 70, sat and did nothing. Got 80, sat and did nothing. Got 85, sat and did nothing. Done.
I did do some raiding here and there but having to tolerate 9 other people and work around their schedule and shortcomings just isn't fun for me. GET THE HELL OUT OF BLISTERING COLD ON THE SINDRAGOSA FIGHT!