Seriously though. My 2013 Air is the best computer I've ever owned. Thankfully I had the foresight to buy the 256GB model back then. I replaced the battery 6 months ago and it's back to its original capacity and still runs like new. It's getting Mojave so it's going to have the latest software until at least the end of 2019, and MAYBE even a year after that depending how generous Apple wants to be with supporting 7 year old hardware in 2020. I will continue using this computer until most accessories and flash drives come in USB C form and I get annoyed because I need reverse dongles to use them with my old fashioned USB ports. This machine is truly 100% Macintosh in every way, if that makes any sense.