Just had to chime because we're getting some interesting feedback.
I mentioned this earlier when the Coffin Case and Red and Black GBA for Boktai was coming out, and I was confused at the target audience. It seems for every top tier Japanese GBA title, there's a special edition GBA to go with it. I ask again, who are they aiming for? Those die-hard fans with enough Yen in their wallets? Or for those who were on the fence, but once [insert game here] comes out, they say "Yep, Imma getting the GBA now!"? Some goes for GC, but to a lesser extent (Pearly White GC w/ Final Fantasy CC, mmmm..)
This time, its the exception as this GBA is dedicated to the Famicom, and its a giveaway, you can't buy it (Though I'm certain there's gonna be somebody who will sell it on Ebay and there will be somebody who will pay top dollar for it) NOA did something akin to this, remember the Platinum GBA? Any one know how that turned it out? I'd like to know, though when GBA SP was announced, that Platinum GBA didn't look so good anymore...
If I was a betting man, I'd bet that NOJ might release a limited edition SP with a Super Famicom theme to it in the future. But we'll have to wait and see.