The FX and DX are just media formats like 8x10, 4x5, 35mm, 120, etc. Each has a place in the art of photography. Those who want more control and than a P&S but not the weight and size of the FX or 35mm camera will opt for the DX. Pros that need a smaller camera with the best image they will look at the FX. Pros that need a studio and extreme detail will go with the Hasselblad.