A non-working Game Boy? 
GBAtemp.net - The Independent Video Game Community
Veho
Jayro
Nobody is stopping you from slipping a Pi Zero 2 inside for gaming.
Veho
Lack of money and know-how.
Veho
I want that set now that I'm old, but as a kid I would have preferred something more functional and rebuildable. Preferrably Space themed.
Jayro
You can swap out the screens and cartridges, and the buttons all "work" (they jiggle and whatnot).