I need to buy either an Air or a MacBook, though I wish I could wait for the next update instead. If I get an Air, I'd go for a refurbished or used one -- likely the 2015 or '16 13” 1.6 GHz i5. It goes for $849-$899 (with 8GB/128GB) when it shows up from Apple or Gazelle. To approximately match its performance would take the newest MacBook, which hasn't shown up refurbished yet, so that's $1249 (on Amazon), PLUS the cost of port adapters. The Air has been on "Don't Buy" status here for months, and I hate to buy something so long in the tooth and without the retina display (and force touch and redesigned keyboard). But is it worth spending $4-500 more for the MacBook + adapters instead, when performance would be comparable? Do the "Don't Buy" recommendations apply to buying used?