Hello, I have a question to users who have owned both the higher-end MacBook Pro model and the latest MacBook Air 13". I have been using two MacBook Pro 17" for a few years. I am feeling the weight and want to get a newer computer. The MBPr is lighter but I don't like the fact that are lot of applications look bad on such an expensive machine. It may also be difficult to use it on the bus. Now, I am considering to get the latest MacBook Air 13" rather than the MBPr 15". How do you feel about the latest MacBook Air 13"? Any experience appreciated. Thank you.