How happy are Corvette C7 Stingray buyers with their cars? A used Stingray with 9 miles on it

This question should not be even asked was it not for this jewel:  a 2014 Stingray with NINE MILES on it, being sold by of all possible makes, a Mazda dealer.  What happened here?  Someone bought a brand new Corvette and drove it straight down to the Mazda dealer  to trade up for a Miata?

There are plenty of low mileage used Stingrays already flooding the market but this one is in a league of all its own.