> That said, that approach may piss off people as well. Imagine paying $50k for a Tesla, and only being able to get $30k when you sell it because you paid $20k for features that won't transfer over to the new owner. Even worse if your new car isn't a Tesla: that money would be lost.

There's an easy fix for that: add the option to transfer the Autopilot to another account. Then you can sell off the Autopilot as well.

Given, of course, Tesla being willing to allow that, or if not, sufficiently consumer-friendly legislation.