I was in a charity shop in Rochester last year when the staff we discussing how much to price their boxed 'Days Gone' haul that had just been dropped in.
£10 each was mooted, then rejected as too high, 'how about £7.50 each?'
I had to interject and offer my wisdom on the subject.
Politely, I advised them they were virtually worthless. I even bought one for £5 just to make the point I wasn't trying to get them cheap, merely giving them the benefit etc etc..
A week later they were all lined up on the shelves, pride of place, and awaiting new homes at....£5 each