This original Super Mario Bros game was called “​​the most significant piece of video game history that's ever passed through our grading company," by Rick’s expert. But even that lofty assessment wasn’t enough for Rick to come to a deal with the game’s owner, who held firm at his $1million asking price. That owner eventually sold his game elsewhere for $2million.

When a man walked into the shop asking for $1million in exchange for the Beatles original contract, Rick was understandingly skeptical. After his expert valued it at $500,000, the two were unable to come to an agreement.

Shockingly, the most valuable item ever sold on the show was a collection of Maurice Sendak drawings. The author and illustrator for Where the Wild Things Are, Maurice Sendak is a celebrated figure in children' s literature, and this collection of early concept drawings for the book was one of a kind. They sold for $250,000, although an expert valued them around $310,000.

The O.J. Simpson chase is one of the wildest moments ever caught on live television. It makes sense that the mechanical star of that show, his white Ford Bronco, would sell for a pretty penny. Owned by Simpson’s agent at the time, Rick wasn’t willing to meet the $1.25 million asking price.

Rick Harrison shows off this 2001 Super Bowl ring he claims he bought off of a player. At the time, it was the most extravagant Super Bowl ring ever made, and Rick claimed he’d reluctantly part with it for $100,000.

This iconic custom Gibson Les Paul guitar came courtesy of Les Paul’s nephew, through Mary, Paul’s wife. The unique instrument and its personal connection to Paul drove a price of $90,000 in Season 12.

The second most expensive purchase on the show wasn’t one specific item, but a man’s sizable collection of silver. Through blocks, coins, and much more, his 3,372 ounce, (210.75 pound) collection netted him $111,000 at the store.

One of the most valuable items ever seen on the show, the asking price for our first president’s three-piece suit was around $3million. That was out of Rick’s price range.

This 1963 Fender Stratocaster was once owned and used by Rock legend Jimi Hendrix. Valued around $1million by an expert, Rick was unable to come to a deal with the guitar’s owner. Rick wanted $600,000, with the owner at $750,000.

Magic the Gathering has a huge cult following, and these original Gamma test cards for the game were a collector’s dream. Valued around $400 a card, the entire set was worth over $10,000. However, the bartering never reached an agreement.