Hi Steve -
just spontaneously I would say I agree with you, on two various reasons. First of them is evident - watching video takes time - exactly as much time as the length of the videoclip . You can listen to the music and do anything else at this moment, and if you are watching the video - then you are only watching the video! For me, it is a luxury.
Another moment - as I can see, your preferences are rather prog-like. There were - and are - a couple of really interesting videos in the genre ( like that of Peter Gabriel...) but it is still more about pure music here. Or videos of live gigs - the situation rather similar to jazz or classical music.The most famous videos were made by / for pop-stars, not prog stars.
Saying all that, I have to add there are lots of live concerts on videos which I enjoy - among them Focus, Yes, ELP, Dream Theater...
I love to do multiple things while I listen to music - draw, organize, rummage, type replies to forum posts, etc. Your point about watching a video being all-consuming of one's currentl focus is certainly a key one. Unless the video, or the movie, is very, very good I find myself wishing that I could just listen and not watch; and sometimes I indeed do. :grin:
And yes, I am a progger through and through. You mention some of my favorite bands above. It is even cooler now that I have interviewed some of them (Alan White, Carl Palmer, Tony Kaye, Billy Sherwood, Dave Cousins, Dave Lambert, Chas Cronk, and Chris Squire) and actually have developed personal relationships with a few of my prog heroes.
I can't wait for the Dream Theatre's 'Progressive Nation 2008' extravaganza:
http://www.progressivenation2008.com/tour
or The Strawbs' (Electric) 40 Anniversary Tour
but I am not sold yet on Yes's upcoming tour. I don't mind that Oliver Wakeman is behind the keys instead of ailing father Rick however I just don't know how much passion (or practice) they are going to bring to this tour given the chronically frayed state of personal relationships within the band and that there is no new music to tour behind. I have seen far too many Yes shows to be much excited at seeing Roundabout, Close to the Edge, and Time and a Word live once again (even if this might be the last time). My wife and I may end up going, but I really am not sure yet...
Best,
Steve S-N