According to Nintendo's Japanese site, the GameCube will be dropping in price there soon as well.
On October 17, the GameCube will be selling for 14,000 Yen (about $120 US). The Enjoyment Plus Pack which includes a Game Boy Player and Memory Card 251 will be reduced a little sooner on October 10th for a price of 19,800 Yen (about $170 US).
Now Japanese gamers and importers looking for fancy colors can save a little dough with the rest of us.