In the context of self-driving cars, autopilot is in the category of "we're 90% done, only 90% to go!" Except much worse than that, because that implies you're about halfway there, and autopilot is maybe 10% of the way towards full self-driving.
Don't get me wrong, autopilot is super cool and really useful. The autopilot features that are currently enabled in my Model S are wonderful, and I can't wait until they're all there. But they won't be even close to full self-driving. All it will do is maintain speed intelligently based on the car in front of you, automatically stay in your lane, and switch lanes on command. It won't switch lanes on its own, it won't stop at stoplights, it won't make turns for you, or do any of the hundred other really difficult (for computers) things that are part of everyday driving.
Shit, a self-driving Tesla, now that is a car worth saving every penny for...