If this is a DS-based device, could you try dumping the firmware and BIOSs, using a flashcart and the homebrew dsbf_dump?
Oops. I always seem to forget to read the rules before making threads here... I'll delete the post.
The consoles are worth money on their own, but the more "well-thought of" the company that owned it, the higher the price will be, most likely.
It appears to be the standard USA store kiosk demo, but clear photos of the cart would be helpful in knowing for sure.