Sure, and sometimes that control may be justified. Think of it this way: publishers used to have more revenue streams. They could offer flimsy paperbacks as well as premium priced and durably bound hard covers. Audio books could be offered as a separate product. Physical books also succumb to wear and tear, while properly backed up ebooks will last forever. Yet consumers now expect every book to be priced like a mass market paperback (or less), to format shift as they please, and to own that book forever. And yes, piracy is an issue. (And yes, DRM reduces some forms of piracy.) Is it any wonder why publishers are nervous?

That isn't to say that I agree with all of the control that they are trying to exert on consumers. I believe that the consumer should have the right to sell or give away a book when they are done with it. I also cringe at the notion of books that expire (which I've heard of in the textbook market).

Anyway, DRM shouldn't be presented as an us vs. them sort of thing. Both sides need to have their rights protected, not just consumers and not just publishers.