The video review is excellent because it covers a few topics that are more difficult for consumers to discover on their own. Too many times I've seen a video overview or review of a product from Cnet or Crutchfield that tells the consumer the basic stuff (basically an oral brochure) that would be incredibly easy to find such as output wattage, specifics on connection quantities, and so on.
I think it would be highly interesting and different to add another dimension to these video reviews (at least on higher end products) by including a build quality and internals section, going over the different components that comprise the product that are relevant to the product's performance and what sets it apart from the competition. Since the video is a more relaxed setting it would supplement the written part on build quality and parts compliment. I feel the quality of the video here would convey exactly what someone like me would want to see when taking a close look at components.