Quoted from RustyLizard:It's a TV show.
^This.
What a boring show it would be if they simply walked in, asked the guy how much and paid asking price on every item.
EDIT: wayout440 got in first.
On that note, who has ever had to deal with a buyer in real life that employs the same stupid $5-$10 increments when trying to negotiate a sale on a $3000 pinball machine because they have watched it play out for a $300 item on AP?