"Yes, and watching a video will be great preparation for giving your students their money's worth.... NOT"
So, let me see if I understand you correctly. If someone purchases and studies a video, they are not good enough to pass that information on to another person. Be it a teaching situation or a male/female watching the video and teaching their partner, you are saying that is isn't good enough. Please explain...
Just what do you think videos are used for if not a "teaching tool"?
You are fond of quoting books, why should they be any more of a teaching tool than a dancer performing steps and exlaining them on video? What is different from purchasing a video of a professional coach and learning from it versus paying hundreds to get the same information?
You are also fond of watching competition/showcase videos and critiqing every single step, is that not learning from video?
I support the use of videos 110%. Not only do they provide monetary compensation to websites like this AND the dancers, but they are readily available to view at any time, anywhere.
I've met two people since entering the ballroom scene who, by their own choice, learned EXCLUSIVELY from DVD/VHS. They are just as good as the person next to them, or in front of them.