Netflix via hard drive?

Mark Cuban speculates in a long post about the future of video content delivery and the end of DVDs:
We are looking at customizing it per user. Go online, pick the content you want. Pay for it, the next day your hard drive with all the movies, shows, music, whatever, shows up on your doorstep. You plug it in your MediaCenter PC, your DVD, PVR, whatever, and watch, listen and play.

There is also the Netflix rental approach that could work as well. Pay 100 bucks for the first 200gbs external drive. Pay us 20 bucks a month, and we send you a new drive with the new goodies, and you send us back the one you just watched -- Easy and breezy. Well, that is if consumers like working that way.