I might have paid the lowest price for a non-"damaged" one. Mine was brand new, $260 with shipping.
But I'm in Japan and amazon japan has had these thing priced to move since this spring. I guess it's a slow seller here cause people don't really have a lot of room for a 3 foot long plastic car. I don't either, but I'm kinda stuck with it now!
(just checked...with the current crappy exchange rate for the weak yen, they are still listed brand new at $270 shipped. It's a damn shame it's only in Japan. if there were any way to logisitcally buy these and sell them to overseas collectors I would, but the shipping from here must be astronomical.)