Because....
....Of the hand-written labels on the back, I'm going to venture a guess that this fridge was not production, but a specially-made unit for some use like trade shows or publicity photos, maybe a prototype or test run.
If one of those possibilities is the case, who knows what it's "worth?" Maybe it's not worth $13K to anyone here, but there are people out there with deeper pockets than most of us on AW can imagine. And some of them love rare midcentury stuff.
The major drawback I see is that broken liner on the refrigerator door. It's going to take a donor unit to resolve that properly.