Why spectacles, they could operate on your eyes to print DRM enable them. In fact, there's an entire range of visual services they could enable for a monthly subscription. This, my friends, is the future.
I don't have an issue with standard paperbacks, they solved the weighty hardback problem (don't get me going on trade paperbacks). Their spines are designed to be broken. I don't trust paperbacks with an unbroken spine, there's something off, and the owner probably hasn't read them. Admittedly, if it's Twilight or the Further Adventures of Dan Brown, that's probably not a bad thing.
To be fair to Microsoft, they had six customers and three of those signed up accidentally, and one was a cat. And they did return the money. The issue, of course, is that they didn't really have to do anything. DRM is crap, I'm not sure why some businesses haven't realised: you can find any book, piece of music, or film for free if you really want. To be fair to Amazon, Apple etc. it's usually the licence holders (or at least the management of those entities) that had pushed the issue.