My biggest reason for deactivating my account is temptation. I have to study for finals, and I can't be tempted by having facebook open. Logging off isn't good enough, because you can always just log back on five minutes later once you get bored of studying- so deactivating seemed like the best choice. No temptation to log in because "I don't have facebook anymore." Well, technically I do. I can reactivate my account by simply entering my email and password again- and bingo everything is back to how it was. I am hoping to make it a full 10 days from yesterday to next wednesday the 15th. After that, I guess I will determine if I really want it back or not. Unfortunately there are so many people on their that I use it to communicate with that it's too big of an outlet just to throw away.
Happy studying!