I bought a Macbook Air 13 liked it, but returned it because.... well I think I will wait on either an IPS display and or 1080p - retina. My wifes Asus zenbook prime 1080p IPS display is amazing, so this prompted the return of the air and the wait for the mysterious updates. I may go with the 13 rMBP, but there is an update to haswell lingering? In the meantime I upgraded my ram in my late 2008 MBP to 8 gig and installed a 240 Kingston SSD for 230 total and WOW!!!! what a huge difference. I have new gained respext for my old c2d friend.