I'd go vegetarian but I like cheese too much. I'm afraid I'd live on cheese.
Really I think I want to do it so I'm forced to think about food for a while. I eat so much crap without giving it a thought. Hamburgers are just... always there, always cheap, always calling me, and I don't feel good about myself after I polish one off. I don't think I could really go vegan forever. It's impossible for me to sit here and be like, "I'm never having ice cream AGAIN" and not want to jump off a bridge. I just feel like moving that way.