I am thinking of trying to convert my 65 year-old Dad from his old Windows laptop to a Mac. Looking at the Apple refurb site, I narrowed it to these two units that are just over $900 each. 1.) $919 2011 MBA 13" http://store.apple.com/us/product/FC965LL/A 2.) $929 2012 MBA 11" http://store.apple.com/us/product/FD224LL/A/ Both have an i5 1.7GHz processor, 4GB RAM, and 128GB flash storage. The tradeoffs are: 13" screen vs 11" screen HD3000 vs HD4000 USB 2.0 vs USB 3.0 FaceTime camera vs FaceTime HD camera The weight difference I don't think matters. What do you think? Thanks!