It's ebay. Right time, right place with the right bidder who has a need. Have seen these sets go for more than $500, this has to be a record, though. Can't stick a dollar bill where the switch and lock go. It's like anything else, the item is worth exactly the price the the person who needs it is willing to pay for it. Everybody has their own definition of 'value', what they can or want to afford, if they live in an area where such items are not readily found, etc. We are lucky here in the States, we have much more access to finding these parts, our overseas friends have much less to find.