I don t know who this is appealing to the most. In some ways I would think the super nerds who hold Super Mario and Zelda close to their heart (and pocket protector). Or this could be appealing to that angsty teenage goth/punk/whatever that holds vintage Super Mario close to their heart because it is trendy. Regardless, something uselessly cool like this is bound to make some good dough because people love vintage crap. This calculator is built into a cartridge for the Famicom and is available in Super Mario Bros., Legend of Zelda, or Ice Climbers for $14.99.
Nintendo Cartridge Type Pocket Calculator [Gamebrink]