The GBA's Last Stand
1up.com has a feature up examining the possible end of days for the Game Boy Advance. From the article: "...it would seem the end is nigh. Sony's PlayStation Portable offers PS2 level power and a beautiful screen next to GBA's humble, Super NES-quality experience. And Nintendo seems be placing its hopes on its quirky but successful two-screened DS. Rumors of a next-generation Game Boy system were crushed at E3 2005 with the unveiling of Game Boy Micro, a revised GBA selling on its stylish, compact design and beautiful (but minuscule) screen."
GBA: $50 US on ebay if you're lucky
PSP: $299 new, still fraking expensive on eBay
The GBA isn't going anywhere. Anybody who considers the PSP and GBA direct competitors are idiots.