Look. It's possible that I will never stop yelling at people about how DRM is expensive and doesn't work, which is basically the business definition of 'waste of time'. Until that time, I will continue to present you with evidence. User 'danps' (sorry, I tried but couldn't easily find any more attribution information), discusses how the publishing industry seemingly hasn't learned anything from other media industries (this argument extends to the movie industry too, but that's the same argument for another day):
Listeners hated DRM because it restricted their ability to enjoy the music they paid for. Towards the end of the last decade businesses began to realize that DRM could be a headache for them as well, so eventually they wised up. By the end of 2011 all the major music stores were DRM free.
Short version: It was a hassle and there were some growing pains, but in the end the industry figured out how to deliver its product in a way consumers were happy to pay for. Lessons learned, all’s well, hooray!
The lessons haven’t been learned as widely as some of us hoped; the book industry seems to have spent the last fifteen years in a state of suspended animation. It is in the process of making exactly the same kinds of mistakes the music industry was making a decade ago.
Danps describes his recent experience with a Barry Eisler sale on Amazon and comments:
The book industry isn’t there yet; it’s at odds with its customers. Readers want to be able to read the books they buy, publishers want locked down exclusives, and creators (even forward thinking ones like Eisler) are left to navigate those waters as best they can.