I do dev work in Xcode and iOS simulators on a rMBP 15" for a living, and have an app I want to make - but that means I've got to do it offline from my work, hence not use work assets to develop app. So I need a Mac. But I have no idea what to get.
I'm kind of kicking around between a Mac Air and a rMBP 13. The rMBP 15 is nice but expensive - I'd get a much higher powered desktop for the same money and I don't do anything that needs crazy video. And I really like the portability of the SSD 13" chassis machines. The Mac Air is much sleeker and I can get an i7 Core, but the rMBP has that screen and though only an i5. HELP!