My nephew bought an Xbox One and 4 games at Christmas at Wal Mart. He got home, unwrapped the games from their plastic containers, which were sealed in plastic, just like they should be, and there were blank DVD's in them. He took them back, and Wal Mart refused to exchange them, even though they acknowledged that this has been a problem. I told him to have his credit card company take care of it, but he's just too mild mannered and ate the loss.
Fast forward, a week ago in Michigan, I stopped and bought my son a Nintendo Switch game. Like an idiot, I forgot about my nephew's deal, and didn't open it at the cash register. No game cartridge. I took it back in and they apologized and quickly exchanged it.
The theft is getting more sophisticated. I'm not sure if it happened at the factory or the distributor, but those games were all wrapped just as they would be from the factory.
It amazes me how dishonest people really are, and the effort they'll expend to steal instead of putting that effort into honest work and earning their way.