[dehrmann]

Aside from association with piracy and not being a dropbox alternative because you have to keep the seeder online, it's more expensive for network operators than CDNs, connections often have much more downstream bandwidth, and connections are still sometimes capped. If you're Netflix or an ISP, you're better off getting ISPs to put your hardware in their facilities than having users seed content. The most interesting, viable application I've seen for Bittorrent-like technology is Microsoft seeding updates on a LAN.