Yesterday, a factory sealed North American (NTSC) version of Stadium Events (NES) sold for a record $41,300!

The NTSC version is universally accepted as the rarest licensed NES game available for purchase in North America. 

At the time of its launch during the holiday season of 1987, Stadium Events was only available in limited stores prior to Nintendo purchasing the distribution rights.

The two Family Fun Fitness-branded games that had already been released, as well as Bandai's version of the running pad accessory (rights purchased for the Nintendo Power Pad), were pulled from shelves and presumed destroyed. Because of this odd sequence of events, only 2000 copies are believed to have been produced, of which it is estimated that 200 copies reached consumers before being recalled.

After this auction, I imagine many attic boxes will be scanned...