Let me preface this by saying that I believe in the free market. People can sell their possessions for whatever price they want to ask. That said...
You ever get any local people that want a silly price for their performance parts that is well above market value, then relist the parts indefinitely and get indignant if you offer them something less than they asked for?
I have a local guy who put out a blown LSJ (bottom end destroyed, including oil pan) over a year ago. He couldn't get anyone to buy the whole blown motor for what he was asking. He even had it on ebay for some time, no buyer. So after watching it sit for a few months, I offered about 20% below his asking price, which he wouldn't take or suggest a counter-offer on. Fast forward a year, he takes apart the motor and puts up the supercharger "kit" parts for considerably more than he was selling the whole motor for before, and wants darn near a grand for the whole blown LSJ now. Um....what?