As far as games go, there won't be a lot of future collectability. Most titles had ample print runs, and there weren't a lot of good "niche" titles. However, the system itself has quite a few LEs that I see having intense collector interest in the future... the Bill Gates Launch Xbox, Mountain Dew Promo LE, Halo LE, Halo 2 LE (Candian release only), Crystal Xbox (JP only)... lots more, can't even remember them all off the top of my head. Some of these LEs I see holding value, if not increasing as time goes on.