I have a question... I've had my 2010 MBA for a few years now (2.13, 4gb ram, 256gb hd). Would upgrading to a new 13in rMBP (i5 2.5, 8gb ram, 256gb hd) be worth it? Would I see a significant performance increase? I don't use my laptop for much more than watching HD movies, browsing web, light editing of pics via iPhoto, and sometimes some gaming. My main reason for considering the upgrade is mostly hardware and connectivity with the 13" rMBP, especially the display, HDMI, and USB3. Your input would be greatly appreciated!