In the 1970's when GM dealers were dropping like flies after the exterminator left, I was purchasing obsolete inventory from the Chevrolet dealers parts rooms. I would go from dealer to dealer and pick the shelves clean of all the parts that I knew were obsolete and then go to the auto flea markets and sell them on the week ends. I sold mostly 1955 - 1959 Chevy parts because those were the cars that were "hot". I would pay by the truck load and sell by the piece. What didn't sell, I would put in the cellar and the garage. Now I am trying to sell off the residue. I have about 20,000 NOS (new old stock) parts left. Most of the good stuff has already been sold and the really choice parts that I kept for myself are now going onto e bay. I figure that I could put some of these parts into my cars, but they have more value to someone else than they do to me, so I prefer to sell them. I figure that at the rate that I am selling them, I will have to live to be 100 before everything is sold. As for value, it is a guessing game. I guess and hope that it is a correct guess. I tend to guess high and if I am wrong, it doesn't sell. If I guess wrong, I just try again with a lower reserve the next time. If I put the reserve to low, then sometimes I short change myself, but you can never get hurt taking a profit. Right now, the extinguisher is at little better than $400. I am hoping for it to go to $1000. Am I optimistic that it will get there.... No, but I can hope.... I believe that it will end up at $700. We will know in a few days.........