The supercharger network is one of the main reasons I bought a Tesla, rather than a competing car like a Leaf or a Bolt. Without the Supercharger network, road-trips become charge-seeking adventures. I recall reading a story about somebody who drove their Bolt across a few states, and how they had to stop for hours at Chevy dealers, and scrounge charging wherever they can. With my Tesla, I stop for 30-45min every few hours while I get a snack and use the restroom.

Until there is a widespread, standard high speed charging network available, Tesla is basically the only choice for an EV that can do road trips.