It just doesn't make any sense to me to spend very much on a car. It'd be like buying a sports model curling iron or a high performance cup of microwavable rice. I think I'd much rather save the difference in monies and get interest and investment value from it than own something that does exactly the same thing (get me from my home to where I work or to the mall and then back again) for a lot less dollars. I mean, you still have to stop at every single traffic light, wait behind every other car, and you can't go faster than the speed limit without putting innocent people around you in life threatening danger so why even want something that goes fast and costs more when you're not allowed to do it anyhow?
Sure, but you're not the target market. The Model S is a luxury car. If you're not in the market for 80-120k car (regardless of how it's powered), then clearly this car isn't for you (and neither is a Mercedes S series, a Porsche, BMW 7 series and so on).
Gotta compare apples to apples. As for the speed limit thing, that depends on where you are. In TX, they had a speed limit of 70 in the day 65 at night (who knows why it got lower at night). Now it's 80 (and apparently 85 in some places). The speed limit on most highways is well below the safe driving limit. Indeed, it's well below what most people drive (during non-rush hour periods).