Yes. Buying a Model S 70D this year, and while not level 4 autonomous, it'll be close enough until I can get Google-level self driving.
Yes! Absolutely love Tesla because of what they're doing. I'm a shareholder, but that doesn't really help them, but buying/leasing a car from them does.
I'm by no means wealthy, but I plan on leasing it for 3 years and then financing the remainder when the lease is up (effectively creating a 7-10 year financing model). My wife and I share a vehicle, so I'm not paying a terribly high premium for the car after maintenance and gas savings.
I was paying $600 a month for an Infiniti. That was stupid on my part.