We sell books, so there's rarely if ever a good reason to use video. We tried it on one very expensive item, just to see if it attracted any more customers, but I can't say it mattered (I don't remember which item right now, so it'd be hard for me to go check the stats). It's not worth the time unless the listing is a type of item that would really benefit from it (thinking of items we could have used it on, we once sold a portable DVD player and showing it functioning with something playing maybe would have been helpful, but we put a picture up with the screen on, so that should have been enough). I doubt it's beneficial for the average item.
Also, OP, your post reads like spam.
