I quit a few months ago, I was planning on returning when 4.3 came... However Skyrim comes out in around 4 days, and I definitely don't expect to return to WoW this year.
From the sounds of it, you've grown out of WoW. It happens.
While it's nice to have a thread where the OP isn't crying, we still look down on iquit threads. Not much discussion can come from them, and people tend to get nasty (as seen >_<), so closing.
Remember, if you ever actually want to give Blizzard feedback(since a lot of people are bringing this up) this isn't going to do it. They probably read our forums, but I doubt threads like this. Fully explaining why when you cancel your sub is probably the only time they pay attention to posts/threads/anything about quitting.