@Riz
Sadly, to many it's an addiction (as demonstrated in this post). Taking "time off" for some will literally cause people to show signs of stress and withdrawal. Sad facts.

What got me to curb the intake of WoW was the number of poor changes that have been made to the game as well as my class; the drug got bad and I lessened my intake. So, my break was induced by the pusher. Thanks (or no thanks) Blizzard.

@Zach
Getting back into the game? Thinking back, getting back into the game after not playing for a few days (or weeks) was always fairly easy, I mean c'mon, WoW isn't rocket science. Dealing with other players, now that's a little more on-par with rocket science. Nonetheless, I'm going off-topic.

When one says they "need a break" from something, there's a good indication that there's a negative aspect about what they're doing. Warcraft, and all gaming, is a hobby and should be treated as so. Of course, I'm sure you were prepared to get some flack for the "taking a break" phrase. ;) Perhaps an article on game addiction is on par? lol