No kiddin. With all the camping Scoobs and I have done over this summer (and almost over, sniff) we've run into exactly ONE place that charges for showers, and that a paltry quarter for seven minutes.
You'd think Pilot showers are in gilded stalls or something.
Where I keep the books, the place is only eight years old; practically brand-new.
There's one shower in one bathroom, all sleek and modern and stainless-steeled, for which three bucks is charged, free if one has bought diesel fuel. Fresh towels and soap are provided. It's cleaned after every use.
The truck stop had to have restrooms anyway--an inevitable expense--and so the addition of this third one with a shower cost only marginally more to construct. The owners had contemplated not bothering with charges at all, but then considering the freeloaders and how they mess up things, decided three bucks was a reasonably-high "nuisance" charge. The shower's not intended to make money, just pay for itself.
Now, of course one has to remember the location--way out in the middle of nowhere, hardly any people around other than those zooming down the highway. And so on average, the shower gets used maybe four times each 24-hour day, maybe a couple of dozen times a week.