Awhile back I wrote the following on a piece of paper and put it by my computer.
“I tell my business buyer clients what it will take to get the deal, they make a low offer, don’t get the deal, and it sells for a price in the range I told them.”
One could easily substitute seller for buyer. I, and others, can tell a seller the price their business will (most likely) sell for and they ignore it. Then they get beat up by buyers for wanting too much (and end up selling in the range in which they were told it would sell).
I’m guessing we all do this, to some extent. “This” meaning ignoring the advice of experts, those with experience. In my world I think it’s more pronounced as I deal with clients who want to be in control. That’s what makes them good business people, they’re not lemmings doing the same thing as others.