So I've been the proud owner of a 2011 13" Macbook Air for roughly 2 years now. My baby is starting to show it's age a bit. It's a little slower than it use to be, and the battery doesn't last as long as it use to, but other then that it still runs like a champ. In the 2 years I've owned it, I've never had a single major error with the machine, ever. I've had a few slight hiccups and some odd bug every now and then, and yeah every now and then it randomly freezes on me, but nothing too bad at all. Around this time, using a windows machine, it would have been nearly broken. I do the same exact things on this computer that I did with my windows machine, and yet my windows machine literally crapped out in a year. I also have a buddy who bought a windows machine the same time as me, and he's had to replace his harddrive twice. My mom also bought a retina display Macbook Pro a few months back, and again just absolutely loves it. Now I'm not here to say that Mac is better than Windows or that Windows sucks, but I'm just saying for me personally, Macs are worth every penny of the asking price.