Hi, im a student amd currently have a 2010 11" mba, I have order a 2013 13" mba and im about to pick it up. My school has a comouter requirement and they are very vague about the specs. So if my 11" is usable I will return the 13". My question is can I return a open mba without any restocking fee? Or should I jist leave it sealed until I know I must need a new comp. The reason I bought the air right now is bc of the $200 sale