I‘m not sure about the $30. but look at the Fujitsu Futro S740. They can be had for about $50 with 8gb of ram and an included ssd, have support for dual 4K monitors and so on. No WiFi out of the box, but they do have a second m.2 that can be used with a cheap WiFi card if that is what you need (or you could install a second ssd).
And even if they are not a direct client of Foxconn, Foxconn makes electrical components that can be found in literally every PC made in the last decade. So there is no way around that company.
I have filament that is now more than 5 years old and it still prints fine. But I also had 5 year old filament that printed fine at the outside of the spool, but cracked at the inner 1/3 of the spool (just a day later)
Sure, but not $60/year per car expensive