Game Boy Advance SP Price Drop Imminent

According to major game retailers Electronics Boutique and Gamestop, the early copies of pricing materials received by the company indicate that the price of the Game Boy Advance SP handheld game system is set to drop. This isn't unexpected, as the Nintendo DS handheld is set to debut in the United States in the month of November somewhere below the $200 mark. So what is the expected cost of the GBA SP after the price drop? A very consumer friendly $79.99 seems to be in order - a $20 price drop from it's current $99.99 price point.