I understand your view, but that's like the naysayers that told Ford they were doomed with the model T. We're a startup in this sector really, established less than 10yrs ago in 2003. We're one of the very few makers actually tackling this market.
Big auto does NOT want to see their massive profits swept away. They fear change, that's a given. Seriously, vehicles haven't changed much since 1960 have they? Pretty much the same idea with some mods here and there.
We've had no problems getting reservations for the model S.
The prices you speak of are mostly generated to the battery tech really imo. Current batteries for this application are rather pricey and bulky at the moment. In due time. That area is getting mucho attention as we speak. Just wait until we can get 1k+ miles on one charge. It's all up to the battery really. Nano-batteries are the next frontier IMO.
Also, electric drive-trains just about destroy fossil fuel stinkers in all areas. Less physical parts to fail = WIN