I was presented with an interesting site that rents out and mails videos direct to the customer, providing a postage-paid envelope for returning the video.  Sound familiar?  It's not Netflix, but AVNac.com, self-billed as "Aviation's video rental store."

What I find interesting about this service is that there are many markets that offer videos which Netflix does not cover.  Aviation is certainly a good example, where thousands of films are produced annually for training, but there are other groups that produce niche videos, including dance and music instruction. 

Bravo to AVNac for filling a void, but I wonder if it wouldn't be better to rent some of these products and view them online?  Seems like a better revenue model to me.