As you're probably well aware, I collect old video game systems and games, especially for the old 8-bit Nintendo (NES). Looking at a pricing guide, I found out that several games have gone up in price dramatically now that retro gaming is becoming kind of popular. Much like the guy on Hollywood Collector can assess how much your movie props are worth, I can tell you how much video game stuff is worth to a collector. If you happen to have some old NES games laying around in a box somewhere in the attic or have some stashed away that you were just planning on putting in a yard sale, see if you have any of these. Putting them on eBay (or, better yet, selling them to me directly) can bring in more than just a buck or two.