$10,000 Surface Modeler + ACAD
Back in 1997, I had a job to evaluate 20 of the best surface and solid modeling programs for a company and pick the best one for them. Rhino was literally the best for them at any price. Now, 10 years later, it rivals the functionality of programs costing $5,000 to $10,000. It is a very strong surface modeler and file translator, but incorporates features from solid modeling like booleans and features for doing 2d blueprints. There is a way to do about anything you want to do in Rhino. Rhino 4.0 has brought the quality of solid modeling booleans and 2d blueprinting dimensions and details up to the level that the surface modeler has always been. For me, Rhino 4.0 brings Rhino to a level in 2D that replaces ACAD for the kind of stuff I do and I can now do solid modeling booleans that I would have had to build from the curves in 3.0. Rhino is worth the price as a file translator alone, but now you can truly do anything with it. I've been doing 3D modeling since 1985.