Look at the price tags on the wine bottles. Which one will you buy, assuming you don’t know the wine? Most people choose the $95 bottle. They don’t want to look cheap by buying any of the $15 bottles. And the $150 looks so much more expensive. Bingo, you fell for the decoy trap. The purpose of the $150 bottle (the decoy) placed right next to the $95 bottle it to make it look so much cheaper. It seems the way to sell a pair of $800 shoes is to put them right next to a few pairs of $1,200 ones.
When valuing something, beware of what you just saw before.
Beware of decoys in wines and stocks.