The biggest problem is, solid models and nurbs are mathematically complex, whereas polygons are mathematically simple. It's all about speed. And translating it over to polygons is feasible, but can be time consuming.
I'm a regular SolidWorks, Pro-Engineer, and AutoCad user. creationtwentytwo said it right when he said he'd run off crying if he had to use it for game art. I work in an engineering department. I create solid models and assemblies that have to be accurate to within a thousandth (sometimes even a ten-thousandth) of an inch.…