@height8 Neato! I'd love there to be stores like that around here too, but unfortunately the few physical stores that are still around only stock the current machines and only the top 10 list of most sold games per system. Not my scene.
I'll let you know if something comes to mind. Always good to have more sources and possible places to find something out of the ordinary. ??
Hopefully I can swing by a couple of places next time I'm in Japan, and see if there's anything interesting littering the shelves. Mostly I'm looking for the ever elusive Game Boy Light console, but browsing around I might locate something else.