EBay is what you make it sometime. Value if you know what it is and the seller doesn't or if they can't spell worth a dime.
You got that right. I once picked up a new looking Lyman hollow base mold for a Colt 1860 Army at a very attractive price. Owner new exactly what it was & listed it as such. Another mold having the same mold number as this one, but looking much used was listed at the same time & sold for more than twice what I as the only bidder paid for mine. That seller had listed it as a mold for a .45 Colt. In this case it wasn't that the seller didn't know, just that apparently no-one was wanting what he had except me.