I'm not sure that I fully understand your concept, but it sounds like what I and many many other affiliates are doing with video reviews to sell products.
There is definitely a favorable bias in Google's rankings toward videos, and some percentage of people prefer them (non technical peoples, for techies they are too hyper and prefer to scan a page of print to digest the information faster).
Good free video distribution site:
TubeMogul.com | In-Depth Tracking, Analytics for Online Video | Web Video Syndication
search on youtube for virtually any product and you'll find affiliates who have done video reviews.