You can find some real treasures on Ebay, if you come across some lots where people are selling uncategorized tubs and don't know what they've got. I picked up

You can find some real treasures on Ebay, if you come across some lots where people are selling uncategorized tubs and don't know what they've got. I picked up one lot that had about $500 worth, if you were trying to buy them on BrickLink, of complete, partially disassembled sets for $40.