It really is a great purchase. There was some issue with a co-worker of mine saying it was wasteful to get a new computer after only nine months. It really hit home with me cuz I realized my apple addiction has been bad for one year now. However, the improvements aren't incremental. They are pretty big. Just the bezel and weight reduction alone justify the upgrade along with the speed and sleekness. Plus the fact that both my retina mini and 4 refused to play video of any kind and one is already gone and the other has been banished to my car trunk.
The Air is the nicest computer I ever had. My first computer was a 1984 Mac. Then a 93 performa 600 cd. I remember that old girl so so well. Then I had a powerbook 520 c in 1995. In 2000 I got a compaq, and a vaio in 2004. Then I bought a crappy hp for 350 bucks in 2011. Then I got my first ipad in feb. So now I stand at the pinnacle of a summit of a mountain of crappy computers. Actually, the apples and Sony were good. The rest sucked.