Lenny wrote an interesting bit about video, got an interesting bit back. check it out here
I'm a huge movie fan, but when it comes to "video art" i fight back the urge to yawn. Everysooften something will hit me... like the spinning tops piece at the hirshorn but its so rare that the genre doesn't do it for me.
One of the main reasons for me is that i find visual art to be meditative, and moving things never put me in that state. trance like, sure, but thats is very different. i do like kinetic sculpture, but thats just plain old fun.