All one has to do is look at Tesla's upcoming 2016 map of chargers to see how quickly they're planning on expanding it. Tesla has already said that they plan to double the number of charging spots by the end of the year and I expect similar growth in 2017. The superchargers are the big game changer for Tesla. Nobody else can boast having an EV which can be driven across the country without spending huge amounts of time charging. Last September I had no problems or significant delays driving from the Bay Area to Seattle. It took me 2 days and charging only added 3-4 hours to the entire trip. The time often wasn't wasted either. I used it to stretch my legs and grab a bite to eat. If I were driving a gas car I'd also take 2 days for this drive since I'm not about to drive 14-16 hours straight.
They aren't expanding to western Nebraska. It's 402 miles from Scottsbluff to Lincoln. In my car, that's one stop for about 10 minutes max to fill up with gas. The model 3 doesn't have a range listed. The X and S say 237-294. At the low end that's two stops just to get to my destination, which adds at least 75 minutes to each trip. Oh yeah, there aren't any charging stations on that route and none planned so Tesla is still out for many people in this area.
There are many people in western Nebraska who travel to Lincoln, Omaha, Cheyenne, Denver, Ft. Collins, Loveland on a regular basis. They aren't going to want to fuck around and wait 75 minutes or more for shit to charge.
Also, I do drive 14-16 hours straight once a year visiting my mother. It's a 28 hour drive and I do it in two days. I'm not even going to do the math on how much time will be wasted charging these things.
My tank of gas gets me 375-425 miles, depending on traffic and how much stuff I have in the car. The Teslas simply can't compete with that. I also paid $18,000 new for it. Tesla can't touch that. While Teslas are great in major urban areas where people just tool around the city to and from work, running errands, etc, that's fine. But it hasn't even tried to reach rural areas yet. I don't see that changing for another 10 years.