The Map you posted is already out of date. I live in Alabama and there is a new Tesla free charging station at the mall 2 miles from my house. Their cars can do 140 mph and drive for about 3 hours 34 minutes at 70 mph. The fast charging stations can completely charge your car in 70 minutes (time to eat a meal between charges). By the end of this year one could travel nationwide with his free charging stations scattered along the interstate system.

If you bought one of his cars and kept it for 10 years, it would be slightly cheaper than buying a 40mpg car and paying for gasoline for 10 years.