The future won't be like the past. I don't expect to own a car 8 years from now in any scenario (electric self driving cars on demand).

Owning a vehicle just seems like such a waste, so much capital tied up in something that sits around all day. Could you imagine airlines that let aircraft sit idle 95% of the time?

The Tesla motors will get much more reliable with time. Nobody has mass-produced such a high torque motor before, it will take time to get the manufacturing ironed out. They will certainly get them to last much longer, but even if they don't the motor unit is only a couple thousand dollars and only takes a couple hours to swap. A Electric powertrain is significantly simpler than a combustion vehicle.

Well then this is obviously not an issue for you. You don't sound like the type to be an "early adopter" for cars, so I think it would be out of character for a consumer like yourself to buy a Tesla is the first place.

I don't think they're alienating a significant portion of their demographic by not catering to people who only buy a car every one or two decades, especially considering they're selling a luxury sedan and they're the only successful American automotive company for at least a few decades.