The 64DD, much like the Neo Geo or the entire Game & Watch range, will probably always have a sort of magical allure to people like us; indeed, we were seconds away from selling our grandmothers when a complete 64DD collection recently appeared on eBay. Now, the above item has been listed on the auction site: a development kit for Nintendo's obsolete N64 add-on.
Although we know that the original system sold 15,000 units, we have no idea how many of these were produced, but considering only nine 64DD games were ever released, it can't be that many! Heck, if we had any idea whatsoever how to use this, we could buy it and make the tenth 64DD title! Imagine the possibilities!
[Update 1: Corrected source]
[Via GameSniped]
