As someone who respects Salvia a LOT for the kind of wisdom it imparts, the introduction of a video camera in a Salvia experience is a strange and uncomfortable thought. First of all, Salvia by itself can be game-showy to begin with. The user becomes aware of the arbitrary parts of his reality, the showiness, phoniness. To have a video camera present might encourage this kind of insight, but I imagine it would also be creepy.
I treat the time and space surrounding a Salvia experience with respect, calm, and an eye for safety. I would never condone a videotaping of a session, unless I really knew what I was doing and it was for insight purposes.
Funny, actually my last Salvia trip I meant to listen to some drumming I did on a field recorder, but ended up accidentally recording myself for a minute or two. Nothing crazy happened, but still interesting.
As a side note, I look forward to smoking Salvia and listening to real-time white noise/static.
ParappaTheRapper, I think you're right, but there are so many other "purposes" of Salvia. It is a great learning experience, and I think you are touching on one of many valuable insights from Salvia. Make sure to question yourself whenever you grab hold of "the one" reason or mode of action of Salvia. I can't really explain what it does, but I think it's probably more far-reaching than learning about human behavior, especially through the modes of watching other people experience it. One can do Salvia totally isolated from people and videos and still learn a lot.