I plan on picking up on the Macbook, however I'm unsure which to pick. I just need it for basic computing and to write. I decided to go with a smaller machine because it's easier to lug around. Carrying the 15 inch and the big charger is no fun! After researching on the Apple site by doing a comparison, I'm still unsure what the major difference is. Basically, the Macbook 2015 is newer, retina display, no ports, and better looking. The Macbook Air has some ports? Anything else I'm missing? Thank you!