I was thinking of using this for an upcoming product, but my personal tastes may be getting in the way.
Personally, after the first video I generally lose interest and never make it through remaining videos on later days and forget to buy during the artificially short buying period. This isn't because the first video is bad - if there was a Buy Button I may whip out my card - but after a couple days I now have other things on my mind and other things demanding my time.
But I am also the type of person that will read a book in one sitting, even if it means staying up all night; when "24" was showing we would not watch an episode very 7 days but instead recorded each episode and then had a weekend marathon to watch it all at once.
For you, does the "drip fed" marketing approach work to build interest and make you more interested in buying a product?