Plenty of folks try to sell stuff on eBay with no apparent idea of it's value. I recently noticed listings for two identical coaches (from different sellers), listed such that they appeared next to each other in the list. One was $50 (it sold) the other was $599 (it didn't, but was relisted at the same price
"It is one of the happiest characteristics
of this glorious country that official utterances are invariably
regarded as unanswerable."
-Sir Joseph Porter, First Lord of the Admiralty (HMS Pinafore)