If youve got a large collection of video games sitting in the back of your closet, you might be wondering if it an untapped goldmine. Though the chances of having a game that could pay off your mortgage sitting and collecting dust are slim, there potential profit to be made from many retro titles. However, it can be tricky to know what worth something, and where you should sell anything that has value. Outside of a few examples famous for their rarity and worth, like Tetris for the Sega Mega...
