All I really want to add to this argument is
XKCD
I'm fairly new to the ebook scene and so far I haven't conidered it worth my time to start looking for a torrent feed of some book. And then working out how to use it. And if the books I want are readily available I won't. I'll just pay and read. The fact that the DRM has been broken and the book is available free is irrelevant, because for books that i want and are available it is too inconvenient for me to bother.
I will of course if publishers don't get there act together. I probably will resort to the darknet. And once there I'm unlikely to return to the publishers. I fthe book I want isn;t readily available or even worse is available in a format I can't read I'll invest the time. Until then I'm happy to pay.