When I had to hand over the keys to the 1976 Cadillac that my grandparents gave to me in high school, not only did I keep the original George Key Case that came with them from the dealership, I apparently kept the spare set of keys, too. AND I still have them, as you see here. Why? Because I'm a keeper of things, plus, back then, you could just go to the local hardware store and have another set made. So the new owner of the Caddy would have no problem getting his own keys.