John, I keep a pretty close track of certain pieces, but only the bottom line of did it sell and for how much, I have a pretty fair "average" of what certain pieces have sold for the the last 4 to 5 months, although I don't have exact figures of how many pieces the average represents. Of course it would be a daunting challenge to track everything as in "pieces that got no bids, opening prices, reserve prices, sold prices, number of bids, etc" on every piece that is listed. Average daily listing is 125 to 200 pieces. I would certainly be willing to help with this as I check ebay 2 to 3 times a day. I would be willing to keep exact track on say 15 to 25 pieces. If someone worked up a form where all reporting would be uniform and 4 or 5 of us worked at it, taking different pieces I think this would give us some excellent figures. Sounds like fun to me. I'd be glad to help