That is just wrong. The ashes of a $20 bill don't have $20 as a lower limit to value.
Please that is not what I am saying at all. "frame of reference", "can", "initial" ... maybe you missed reading all of those words. It helps a lot to know what shit that has no market price did cost you when you are trying to figure out what to sell it for it is pretty obvious...
And yes some people will have a much higher expectation of future value, some will be happy getting there cost back and some just want get rid of it for anything they can get. Bit cost does have an effect on where the initial bidding can start.