First I do have to say, my family is complete disney nuts. That being said, my kids what the promotional DVDs for WDW as a "video" like a Dora video. I was tired of watching other people have fun on vacation, so I completely record our vacations (and actually not the parades as much). When we get home, the kids will ask for a specific trip to watch. And we do watch them over and over. My kids even ask me during the rides if I am recording it, because they want to see it again.
I will say that, as the primary video camera person, I am behind the camera all the time. But having been there so many times, I really don't miss it. If it's your first time, I'd use it in moderation. Since to really enjoy WDW, you have to experience everything around you including the hidden mickeys, the moving spider, the talking parrot, that you may miss if you're too busy recording.
Going to
Disneyland for the first time and probably the only time for a long while, my son has repeatedly ask to make sure I was going to record it. It's a pain, but my kids enjoy it so much I can't say no.
-Virginia