You can get from virtually anywhere in the USA to anywhere else in the USA using the supercharger network. The problem is you're expecting to see them on every corner like gas stations, but most people with electric vehicles charge every night. They wake up with a full tank. So they don't need charging stations for day to day use. Just longer road trips. So not as many are needed. They're also often tucked away in a hotel parking lot somewhere that you don't notice unless you're actively trying to find it.