Video Cameras and Interchangeable lens
True Dave and even when video cameras do take interchangeable lenses they have to be a serious camera before the lenses they take approach high quality DSLR lenses.
I use a small telephoto and a wide lens on my Sony. They are OK. With or without them I would mostly use that HandyCam for video purposes. The Nikon DSLR with its lenses however is different, special and definitely has a video place though much less regularly for me.