The thing that gets me is how a publisher can assert that an eBook should cost more than a MMP, and make that argument without even looking ashamed. I understand about percentages of print production, but I also understand about logistics and everything else and it cannot possibly be cheaper to produce the mass market paperback. Of course, many publishers are trying to get rid of the MMP altogether themselves, releasing an increasing number of books as "trade paperbacks". Really annoying.
They also seem to forget that consumer perception of received value counts too. I'm a paperback buyer. For eBooks, they want me to pay more for less-- can't lend, can't resell, more trouble to read on the beach, often much poorer quality and insane geoprotections. Get real.