For $100 premium over the base model you could go with either a 13in Air (pros: larger screen and better battery life) or an 11in with 8GB RAM. What are your thoughts on which one would give you best bang for the buck? For myself, I'm having a hard time deciding. I use my current Air for basic things like internet, iTunes, etc, so I can't imagine 8GB more making my experience much better. On the other hand a larger screen and longer battery would be nice (while trading off slightly in portability). What say you?