Is there an opportunity here? I regularly 'digitize' old media for archival purposes. If a lot of Netflix DVDs are truly not available anywhere else, I would consider simply ripping them, storing them online and sharing them via p2p.
Legalities aside, there is definitely a market. In AU we have quickflix.com.au. I don't even have a working DVD player anymore. But when I did, I almost exclusively got DVDs that were hard to find even on torrent sites.