I'm with most of the others...
Part of my reasoning is that with a still camera, someone with a halfway decent camera and some skill can really produce results to be proud of.
For video, it's much more difficult to produce results that can be as pleasing. With video, you're generally dealing with a much lower quality picture, you are going to have to worry about sound (which will generally sound fairly muddled,
especially if recording a show or ride), zooming almost always look distractingly amateurish, and it's difficult to "direct". Another thing is that when you play it back, I don't like the way it sounds when the person running the camera talks, and when you're taking a video, it's hard
not to talk if you're trying to direct your friends/family.
And you can't really "pose" for a video like you can with a still photo.
The main thing that would interest me is probably ride videos, and there's already tons of them floating around the internet. If I want to take a quick family video (like when my 21-month-old son was dancing to Off Kilter), we can use a PnS to take a halfway-decent video.
We brought along a camcorder with us last trip, it only made it to the parks maybe 1/3rd of less of the days, and the extent of its use was to video one of the music performances of the Osbourne Dancing Lights, and a walkthrough of our one-bedroom at Saratoga Springs. I was going to video the New Year's Eve fireworks at MGM but was too sick.
Ultimately, I'll leave the video to the pros who can take along professional equipment, get the necessary clearances, have professional editing done, etc, etc.