I don't understand the attraction honestly. I tried one once and didn't think it tasted too good, and it had a lot of calories for something that tasted like slightly sweet water.

I prefer iced green tea instead. You can get the diet kind (read: other than the kind you brew yourself) in bottles with no calories and in citrus and mixed berry. I'm assuming the reason vitamin water is popular is because it's 'healthy', but Lipton Diet Green Tea with Citrus/Mixed Berry tastes better, I think. Tea is good for you, it has antioxidants in it. ^^

I'm actually drinking a bottle of the mixed berry kind right now. :3