So you can show that authors are getting less money in this environment? And, despite me being able to trivially show that I paid less per book than any offered alternative on the table, with the exception of the library, you claim I'm getting a raw deal now? We can even add in performers and others doing the recording to this question.
Obviously, I only have the numbers on what I paid out. If you actually have the others, I'm game to hear what those numbers are. And no, you can't just say, "they would have gotten a larger cut in the other marketplaces," as I am literally asserting that Audible is the largest marketplace because they grew it. A smaller cut of the much larger marketplace is the point. (And in real terms, the cut is smaller for Audible, too.)
It is funny looking at the benefit of libraries to customers, as guess who is also trying to kill library's ability to loan out audio books? (They already have to do some silly license purchase shenanigans.)
Again, if you are worried that they will "turn bad in the future," realize that I can change my mind in the future and agree they are bad. Right now, most evidence is that they are instrumental in growing the market.