So i used to have a 11 inch 2013 MBA as a secondary laptop. i gave to my cousin for graduating, but i find myself in need of a secondary laptop again. best buy was having a sale last week on the 11 inch 2015 for 700 (650 with a student discount). so i was able to pick one up for 695.5 after tax. BUT there is a seller on eBay the is selling the 2013 for 500 no tax. would it be a good idea to return the 2015 MBA and get the 2013. i would be saving $200. is the 2015 MBA worth the extra 200? I don't mind buying a used laptop, as long as the seller has good reviews. I'm just really wondering if the new 11 2015 MBA is that much better than the 2015 one.