This is already the business model for chargers in other countries. Heck long haul truck stops have used this model for decades. Figure that super chargers are

This is already the business model for chargers in other countries. Heck long haul truck stops have used this model for decades. Figure that super chargers are mostly for people on road trips who have just driven 3+ hours, this makes perfect sense. The only strange part is that is hasn't been tried earlier, though I imagine a certain critical mass is needed for it to be viable. (A good friend of mine runs a successful startup in another country following a similar business model)