All in how one looks at them and how many garage sales, pawn shops and used tool stores one has visited in the past fifty years. JMHO, but having done many, I don't see steal deals at $7.33 each.
FWIW, there are fewer used tool stores every year, as pawn shops on the one end, individual garage sales and non-profit thrift stores on the other, make it difficult to compete. They have long-standing access to the product than a start-up used tool store can have.
Another FWIW, any re-seller of used stuff will tell you the profit comes on the buy. Find and buy complete shops/estates from gomers downsizing or down dead and then sort it out for retail sale.
jack vines