Co-authors should have accepted responsibility.

FORBES: New Science Papers Prove NASA Failed Big Time In Promoting Supposedly Earth-Shaking Discovery That Wasn't

While I'm a big fan of discounting and price competition, I think the responsibility for pricing decisions should rest with authors and publishers.

CNN: A dark day for the future of books

By assuming responsibility for the roles once played by publishers, authors are earning up to 70% of the list price as their e-book royalty versus the 17.5% paid by traditional publishers.

CNN: A dark day for the future of books