He seems to like to sell a lot of old non-functioning JUNK (some of the stuff, he doesn't even know what it is or what it came off of) that really has NO value. And he figures it will sell if he puts a price tag of 10-100 times what it would have sold for brand new...as if old, worn out, broken down, non-functioning, useless makes it more valuable. Like old used cloth or plastic (Naugahyde) guitar straps which sold new for $1-3, he wants up to $170. (I still have some of those cloth straps from the 60s that cost me $1.99 new).
I think he must figure that if he only sells just one item to some sucker he has made his profit for the whole lot.