Be cheered, there are a lot of great 13" devices that are at least as good as the Air for every category you list with the addition of price.
Most people ignore Chromebooks as direct comparisons, but many are just as tough, have similarly crummy/capable internals, cost a pittance, are as unupgradeable, and run Linux like champs. They're the platonic ideal of single function computing.
The 13" Acer I bought in 2012 had a 1080 display, could output over HDMI at 2160p, and played video for at least 8 hours on a full charge. Cost maybe $250 and had a very sturdy case that didn't bend or break when dropped. Not that shabby.
Most people ignore Chromebooks as direct comparisons, but many are just as tough, have similarly crummy/capable internals, cost a pittance, are as unupgradeable, and run Linux like champs. They're the platonic ideal of single function computing.
The 13" Acer I bought in 2012 had a 1080 display, could output over HDMI at 2160p, and played video for at least 8 hours on a full charge. Cost maybe $250 and had a very sturdy case that didn't bend or break when dropped. Not that shabby.