My guess on the 37-versus-39 mileage reading discrepancy was that the car only had about two or three gallons of gas in it from the factory, so they drove it to a station, filled it up, and reset the trip odometer at that point.
I don't get car collecting, either. All these rich snobs you see on the Barrett-Jackson auction on TV (heck, it's in Scottsdale and just a stone's throw away from where I live) put TONS of money down on a car that has all these wonderful capabilities, all these bolt-ons or groovy factory options to go fast and turn on a dime ... and yet they'll never give it a proper drive, never see just what it'll do, never make use of that car for its very intended purpose. Cars are made to be DRIVEN, as well as looked at - not just one or the other. Sure, when cars are young they're better to look at than to drive the snot out of, but when they get to point where mine is (at 250k miles), there ain't all that much left to look at and all you can really do is drive the snot out of it. (Sure, restoration's an option, but ... WHY?)
My thought: hopefully some yuppie with more money that he can stand will snap it up and sell/donate it to an automotive museum. If nobody's gonna drive the thing, it might as well be preserved as one of the few remaining REAL '93 Cobras left in its 100% original state, purely for historical purposes. I seriously doubt there are any others left with that low of mileage on them anywhere in the world.
Besides ... a car stored for 13 years is gonna be worthless to drive now, because almost every rubber seal or part on that thing is bound to have dried up a lot and it'll surely start slobbering fluids in a jiffy. I doubt that even changing out every fluid in there before it's even cranked over would save it from such a fate.