Actually "gas stations" barely show a profit from selling gas, it just gets the customers to their stores where they make money selling beer, smokes, fast food, etc. Movie theaters have a similar model, they don't make any money from ticket sales but make money selling high priced popcorn, drinks and other snacks.
OT;
So here's an idea (that has perhaps been thought of already): Why don't gas stations install high powered chargers (as high as they had voltage/amperage available...)
and sell charging for a profit?
No, I mean a real profit. I've noticed that when traveling I pay on the average the equivalent of about $1.00 a gallon for electricity (example-if driving a gas car 300 miles cost its driver $30, that same distance would only cost a Model 3 owner $10 (I know; rough estimate). If I needed to charge, and knew that there was a gas station was ahead (from my navigation app) where I could get charged enough to get me where I needed to go, I'd be more than happy to pay 3X as much for the privilege and convenience of using their charger.
Still no more than what others pay for gas! And I think I'm not alone in this. Think about it. The gas station is there anyway, doing what they've always done; sell gas and food, etc. And they already have electricity. They just need to put a few chargers off to the side by the air & water hoses, and they can make profit from selling electricity as well! Heck, they could charge whatever they wanted. Let's face it; they already charge more for milk, beer, wine, etc. than the local supermarket does.
That's why they call it a convenience store! Most of us wouldn't stop to charge there unless we had to, knowing that Superchargers charge less, and that it's cheaper to charge at home. Is my logic off on this in some way?
Imagine if there were as many charging stations when we travel as there are gas stations! More in fact, considering the large network of Tesla Superchargers, and other charging stations, which don't sell gas!
/OT