
Rare copies of Super Mario Bros. 3 could potentially sell for around $30,000.
An extremely rare copy of Super Mario Bros. 3 for Nintendo has been sold for a whopping $30,000.
While most copies of the game sell for around $15 or $30, this particular edition was priced much higher due to the fact it was sold as an original game, rather than as a bundle with the Nintendo Entertainment System, as most editions of the game were.

Magic: The Gathering card sets can sell for thousands of dollars.
Brace yourself, because you may want to go back and look at some of your Magic: The Gathering cards. A complete set known as the “Power Nine” could be worth up to $27,000.