Sometimes people need a break from Azeroth. There are various reasons for it -- real-life issues, lack of new content, boredom, another game you have to try -- but despite the reasons, most of the time people come back. Something about the world or the people in it draws players back to see what is new since the last time they logged in. Sometimes it almost seems that WoW has a pull that is hard to escape, and you find yourself launching the game and putting in your account and password without even realizing you are doing it.
I have never taken a long break from WoW, and I have played since launch. I have taken a week or two off from time to time, but never any of these extended multiple month or year breaks from the game. Perhaps it is being a pretty serious raider that makes me log in nearly every day. Perhaps it is my penchant for being an achievement junkie or the fact I am an altaholic. But for some reason, I cannot seem to avoid the game for any major length of time. My latest break was right before Cataclysm launched, in which I caught up on some other great video games I missed -- but even then, I logged on to check mail and the AH and chat with some friends. And that is what I realized keeps me coming back: the people in my guild and on my friends list; it isn't the raids or the chance at shiny purples, even though I do enjoy that aspect.
So have you taken time off from WoW? How long was your break? What brought you back?