[mikeash]

At that price you're probably looking at a pre-Autopilot car, which I'd probably avoid. Autopilot is great, for one thing, but also because Tesla's build quality got substantially better over time. I don't think it's because of Autopilot, but its introduction makes for a decent dividing line between old and new.

I haven't looked too hard at the used market, but it looks like a decent way to get one for less. This web site lists a bunch that Tesla is selling through their CPO program if you want to see what's out there:

https://ev-cpo.com/hunter/

For what it's worth, I have an early 2015 Model S and it's had a few minor problems, but nothing close to leaving me stranded.