Actually I was wondering where they may have all come from,I'd take a stab at 200 or so cars mostly in good nick so where do you get the money to buy them,five or even ten cars I could understand but that many,maybe some investigative reporter will track it all down some day.
My guess is that you'd buy them at a point where they're old enough to be a cheap do er upper and before they're old enough to be collectible. Then you stick 'em in a shed...
The amount of time and money it would take to restore just a handful of those would mean that you wouldn't live long enough to get around to the rest.