I was thinking the same - ecology. People need to have 3d Tetris with raytracing while there are millions of hours of old games to be played through. There are few titles that are avant-garde and IMO better in 3d, like GTA VC/SA, Minecraft is revelation of a sandbox game. But otherwise we don't need such good graphics and DLC, when we want story and playability. Recently we played with kids Pokémon fire Red - the world is huge and full of secrets. But I guess this only applies to me and my kids, because other kids I know (my brother's e.g.) don't like pixel games at all