There's a nice interactive map here: http://www.teslamotors.com/supercharger
It looks like you can do cross country road trips if you take a specific route through the middle of the country. By the end of this year, it looks much better.
It looks like you can do cross country road trips if you take a specific route through the middle of the country. By the end of this year, it looks much better.
The norther route puts you close to Minneapolis and Madison / Milwaukee. Larger populations, also more liberal, generally, than a slightly more southern route.
The I-80 corridor fills in if you go to the end of 2015.
Prioritization.
Maybe South Dakota is cheaper than Nebraska. Or they wanted to show that you could go to the National Parks.