I womder if "history is cyclic" applies here somehow and all that...

But I feel it's kinda a more domain-specific thing. I'd venture and take the guess that people in some fields such as origami or other arts & crafts, as well as cooking, would actually have far better use for instructions and how-tos in video format (or at least in audio...) than in text, for one.

(I'll be both happy and unhappy to be ackshually'd, and for the same reasons :p)