Mark Twain's acoustic guitar (really!). It's valued at over fifteen **million** dollars.
Some people on the list queried this extreme value. "Mike in Sacto" posted the response, "My first thought was, 'Well, it belonged to [Mark] Twain.' "
He also posted the following (I've altered the formatting):
My second thought was, "Because somebody wanted it badly enough to pay
More years ago than I care to think about, a fellow was trying to sell a pre-Columbian artefact for $500. A potential buyer asked, "Is it worth $500?" The fellow answered, "It is if you will pay $500."
There's a lot of truth in that answer.