Videoblog Revolution

Slashdot takes a shot at hyping the Videoblog Revolution.  Just when you thought mobloging and photobloging where the hot new thing, it seems that videoblogging is the way of the future.  One of the issues that comes up is production costs and technical difficulties of maintaining a photoblog, however one user shows off his videoblog made completely on open source software.  On the other hand, aren't videoblogs just a stepdown from live webcam streams? Why show in a clip what could be constantly streaming from your camera?