I'm considering trading off my small but quality DS collection and getting a Game Boy Micro instead. If I'm going to bother I want to get one CIB though, so I'm interested what a fair price would be to get one. I recently got a PSP and it has reminded me about how I was never really able to get into the DS games, I've had one for 5 years but spent the majority of the time playing GBA games and not DS games.