I guess it all depends how much they invest in scaling that part of the business. It's a bit of an optimization problem to figure out the "right" formula to grow the business.

I can already feel the pinch at the supercharger stations. It's ridiculous to have to wait for a spot to open. I wish the charging stations were designed with 2 "pumps", so you can plug in next to someone, even if no current flows to your car, and you get energized as soon as the other guy leaves. Also, with a double feeder, it's easier for one party to share the input power with someone else: sometimes I don't want the charge to go too fast (when I'm at a restaurant inside a mall for example, and have to rush out in the middle of the main course to free up the space). I wish I could simply say: "ok, let my ETA be 1:45pm" and have the system dial everything such that another car can charge while preserving my ETA.