Macs are remarkably future-proof. After years of use, assuming they’ve been well cared for, they can still hang with the latest in the line. And if you refurbish them, there’s no telling how long their useful life can be, so getting a refurb is a great way to score a solid machine at a crazy-low price.
Take this certified refurbished 2012 iMac, which is compatible with macOS Mojave. Right now, you can get one for just $379.