Gameboy Only Society

I have a good friend that only plays the Gameboy Advance, and he’s always playing it. That’s easy to do with the handheld’s huge library of games but it’s interesting because that’s the only system he’ll play. No DS. No GameCube. No nothing. He grew up on the NES and SNES but lost interest in gaming when it started to creep into the 3D world. Rather than a Nintendo fan, he is an avid Gameboy enthusiast, and he swears by the thing.

Any Infendo readers out there in the same boat? Do you know anyone that is part of this Gameboy Only Society? And lastly, could this benefit Nintendo?