there was a store in my town that recently shut down //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif But they used regular NES systems as shelf holders lol. I'm sure you can find some on ebay and I'll check with my buddies at home.
I have the very first one with over 50 games. Mine even includes R.O.B the NES robot (I think he only lasted a month or so being sold). Everything works, never thought of selling it.