Actually, the Author's Guild problem with Amazon's Prime Lending is probably the fact that "traditional publishers" only pay authors around 15% of NET, and 'net' is generally undefined in most current publishing contracts, so it's pretty much whatever the publisher SAYS it is, and most authors who are 'traditionally' published are being raped on ebook sales. Author Kristine Kathryn Rusch (sci-fi, fantasy, mystery, romance, you-name-it, also ex-editor and ex-publisher herself) has been blogging for a year or more on the changes in the publishing industry, and this week's blog is very time-appropriate for this forum's subject. You can read it at:
How Traditional Publishers Are Making Money
Previous weekly blogs covered pretty much everything about the rapidly changing landscape in traditional, independent and self publishing. She knows her stuff, and they're WELL worth reading (if you care about publishing, authors, agents, writing, etc).