This is a really good explanation, but ultimately I don’t really care why ebooks sometimes cost more. They shouldn’t, and more often than not I won’t purchase a book at all if the pricing is set up that way. I’ve opted out of reading at least three books in the past month because I just will not pay more for a digital copy and the pricing idiocy makes me so irritated that I won’t read the hard copy simply on principle.
The publishing world is changing. Publishers can get on board with where things are heading and deal with the loss, or they can find themselves extinct. That’s my personal prediction. The consumer doesn’t care that you used to make a lot more money. They just want a book in a convenient form at a price they deem reasonable. End of story.