well the question is more whether or not cards with lower than shader 1.0 are a necessity to support, not whether or not to try and make "uber graphics". personally i dont mind fallbacks, and lod, and optimizations etc... but there is a margin to it like there is a margin to everything, if i make a detail slider that will allow my game to be optimized for both pc's made in 2000, and pc's made yesterday, but my game takes 15 years to release, whats the point?