The Micro also prolongs the life of the GBA which is always good
I bought a Game Boy Advance.
I bought a Game Boy Advance SP. Superb design. Front lit screen.
I bought a Game Boy Player. More comfortable play time.
I bought a Nintendo DS. It can play GBA games too!
I'll buy a Game Boy Micro? NO FREAKING WAY IN HELL! Sorry Nintendo, you lose this time! Maybe you could have won me over. Maybe, with additional features. MP3 player etc. But no, once again you're behind on technological advancements.
Another GBA? No thanks.
GC-GBA Linker will probally be supported but you need to dish out ANOTHER 10 bucks for a converter
http://www.play-asia.com/paOS-13-71-19-70-xeo.html