Basically, MBA 13" vs 13" rMBP... I'll be using it for College mainly, with a Programming focus... Also writing plenty of papers, etc. I have about a 20 minute commute 4 days a week and want something I can use between classes on-campus and as a primary (non-gaming) computer at home. I've been a hardcore Windows user/gamer to this point. But I think it's time I made the jump to a Mac for school. I know the MBA line was just refreshed. I don't mind going with a refurb 2013 model though. And I know on the rMBP, you pretty much have to go Haswell (so late-2013). Again, no problems with a refurb there either. Heck, I even thought about getting an iPad Air with LTE and a nice keyboard/case - am I crazy? Suggestions?