Hard to estimate. I can certainly see a crafty person with $50,000 making 50 separate reservations, with the scheme of selling off the reservation slots to others for a tidy profit.
Perhaps enough to allow him to keep the 50th reservation for himself.
(I guess I should check my credit limit.)
Reservations aren't transferrable. The only way that would work would be if that person bought the 50 cars and then re-sold them at a mark-up. But I think that would be hard since so many things go out the window on a "used" car. (Loan rates, ability to buy ESA, ability to buy pre-paid services, etc.)