they are doing that. They've remade space invaders (twice on ps2), contra, gradius. And the thing that relates all of these games the most is that they sold about 3 copys. We live in a world where the majority of gamers first console was their ps1, they send letters into magazines commenting on how its good that they made a game based on that sonic cartoon. And if anything before the sega saturn is metioned they give you a blank look and walk off. So the companys see this and if they have a choice between making the next spyro or crash bandicoot or remaking a classic retro game who's major fanbase works in an office from 9 till 8 what are they going to choose.