I am still using my late 2010 MacBook Air. I would like a newer version but haven't found a reason to change yet. The MacBook's are too small for my palms to rest comfortably next to the trackpad. The rMBP's are too heavy. I assumed I was going to upgrade at this time until we were notified the Air's were not getting the latest processors. So here I sit with a six year old unit with the A & S keys lettering worn off looking for a good reason to change.