The bottom line is that right now, digital ownership sucks, and we don't own anything.

This, right here, is why I hate buying the digital version of anything. At best, we can only rent most digital things because of the walled gardens and DRM. But it is (slowly) getting better.

Thanks to places like humble bundle, we can find lots some DRM-free books. No starch press and others are offering DRM-free ebooks for purchase in friendly, portable formats.

MP3s and other audio formats are usually not locked down (apple still do there own encrypted audio format?) but, in addition, there are services like with amazon where when you buy a CD, you can immediately access the mp3 titles from the same disk.

I made the mistake of "buying" some digital movies from Amazon when the service first came out. Maybe some day they'll let me download them and watch them as easily as their music store. For now, I still just buy DVDs and rip those to portable formats, because it's easier than getting the app to work on unsupported devices.

Vevue sounds interesting, but I can't tell if the movies are on the block, or if it's just a token to be able to go watch it from someone else hosting the video, in which case, that someone else could go out of business and then the permanence of the block chain doesn't buy you any permanence of media. Also, the login is centralized, the user doesn't hold their own keys, and anyone that can snatch a cell phone can gain access to your account... still interesting, though.