How does the video game collecting market discover or decide that a game is rare enough for it to fetch a premium? A game such as Tengen's Tetris that was recalled or a prototype like Bio Force Ape obviously never had the chance to inundate the gaming scene like Super Mario Bros. 3, but what about a game like Pocky & Rocky 2? It just went for $46.00 plus $4 in shipping on eBay. How is this game deemed rare enough to fetch that price? Do people just figure that there aren't enough of them up for bid on eBay, so they must be rare? Is there a way to look at the sales of video games from yesteryear to put some cold, hard, quantifiable facts behind declaring a game "rare"?
Also, does anyone have a spare Pocky & Rocky 2 they want to donate?