I’d also add time to the comparison. Time isn’t free, and if you spend 2 solid days driving, you might reconsider flying and renting a car at the destination even if it’s more expensive. If you use an ev and have to take a few stops extra that might tip the scale.
To be fair, there were a lot fewer people then, so they didn’t have to compete for resources as much, and you could get a nice cave for dirt cheap