People are making a fairly unfounded assumption that meaningful FSD will actually come to exist within their ownership window. I've got a loaner AP2 right now, while my AP1 is in service. AP2 still isn't quite as good as AP1. It does some unexpected things, and I find it a bit less trustworthy.
The likelihood of having any form of true self driving in the next 5 years is next to nil, I think. I'll be impressed if it automatically and reliably stops at stop signs and lights, and if Tesla removes the "nag".