Its amazing how people get caught up in the biding on e-bay. Just a few days ago, I looked up a particular Nikon teleconverter I wanted. Someone had purchased a lot purchase of photo gear, and had 4 of the converters I was looking for, ending in about an hour. I bid $200, and let it ride. Standing bids were at about $95.00. When I checked back later, all had sold in the $325.00 range, plus $15.00 shipping..
I went to the B&H Photo site, and found the same lens, new, with a one year warranty, and free shipping, for $299.00.
I have used e-bay quite a bit in the past to sell old farm hand tools purchased here in PA to "collectors" for 3, 4, 5 or more times then I paid.
Larry