Sounds like you people don't get out much. This goes on all the time at coin stores, coin shows, pawn shops, etc. If people don't know what they have and try to sell it, someone will always try for some fantastic low price. I've seen so many situations where this happens. I've seen a person sell a large bag of
Mercury dimes for double face value at a coin show. I was watching as a dealer at a coin store give a little old lady about double face value for rolls of
Buffalo nickels. And so many other situations like that. I'm sure at that place you were at many, many people lost out on some valuable items due to not knowing what they had.
Ever watch those things on TV for sending in your Gold? Note how they say stupid things like we are giving a 20% bonus today only. Imagine how many people send in a few thousand dollars worth of Gold items and get a few hundred dollars for them.
What you experienced goes on so many times every day you would really get ticked off if you could witness it all the time.