I just read the above message... And I must say: I DISAGREE !
I also own a Atari Lynx (BTW. It rox.) The Sega Gamegear (Also rox) is a very nice handheld too. Then came SNG wih the NGPC, I like this handheld, but not as much as I like the Nintendo GBC.
I just miss one thing with every console/handheld... GAMES!!! IE. Some Sega games are really kewl, but you can't play them on your GameBoy... So you have to buy a Gamegear.
Now Nintendo comes with a new handheld, the GameBoy Advanced... I saw some screenshots and I must say I like it a lot. Now Sega is able to create games for the BEST HANDHELD EVER, well, that's just another reason to buy the GBA.
BTW: I didn't mind the black&green display of the normal GB. It had some really cool games. Now it's the same with the GBC, it has really kewl games. And the display is much better.
I think all I'trying to say is: I LIKE NINTENDO HANDHELDS !