The only really smart post here. They're cars folks, not precious possessions. Except for a very few exceptions they lose value everyday just by existing, certainly by being used as intended, unlike real, useful goods, like say art.
The real scam is that morons talking to morons have given us cars with paint jobs like the finish on fine furniture (the stuff that appreciates in value) and then we take them into, of all places, supermarkets parking-lots! In any rational world they'd be galvanized and sold raw for you to paint. Or not.
Go to West Marine and get a half dozen boat fenders and hang them off the sides like sensible folks who know no one but them cares about their own foolishly prized possessions.
So the salesman said to the couple who'd just bought their first brand-new car, "I know you're dreading taking it off the lot, and getting that first scratch. For $100 cash I have a treatment that eliminates that fear".
Sounded good, so they paid, and he walked over and keyed the car.
"There, no First Scratch Fear now!"
As Asterix said. "You Romans are crazy"
