Actually Rick, the difference in price range is that amazing at all.
It depends on a number of factors. One, the timing. As you
know, timing is everything. Second, the other bidders. I
have seen far too many auctions go for rediculous prices
because two or three bidders really wanted that particular
item at that particular time. Then, an identical item shows up
on eBay and doesn't command nearly the same price. Why?
I had this situation with some '69 Camaro SS hood drain tubes.
The first set sold for almost $200.00

, then the second set
didn't clear $50.00 - go figure!