Having to turn the heat down and drive below the speed limit just to make it to a supercharger, and a 1 hour or more wait, doesn't seem to me to be part of the "best car in the world". This just shows that the Model S is nothing more than an expensive enthusiast car, it is never going to be mainstream.
You are not going to get Joe Blow public to buy this car and then tell them that they can't drive more than 200 miles or that they should slow down and turn the heat off to avoid becoming stranded. Until battery technology improves drastically, EVs will never become the majority of vehicles on the road, despite all the hype and hope on these and other forums.
Even if there were supercharges every 50 miles all over this country, having to wait so long to charge is never going to be appealing. I'm sorry if you don't like what I'm saying, but to the average American, not an EV enthusiast or technology lover or someone who cares about the environment, convenience is 100% key. The ability to get in your car and go right away, not to have to plan a charge or preheat your car with an app or some other step that is not needed in an ICE. The Model S and Tesla probably will be successful, but in terms of any significant percentage of the car market, don't count on it.