The way Audible book pricing works is a little byzantine. The "list" price of most titles is somewhere in the neighborhood of $50. Plus or minus.
But as a subscriber you're given one credit each month, for $15. So right there you can get the same title for much cheaper if it's your credit redemption.
But that's not all. If you buy the Kindle edition of a book, it's only $7.50 or so to add on narration with the purchase. The text copy of the title might be $9.99, so the total is still far less than the "naked" audiobook price.
I don't understand why they do it this way. Even if I'm out of credits, I can save $40 or so by getting the Kindle+Audio bundle vs. just the Audible version alone.
Credits with frequent 2-for-1 sales, £3 sales and £1 sales, there is just no reason to ever pay retail price on Audible.
With that said, I do think I misinterpreted what they were saying, which was more speaking to the original outcome if full price than what they would do now regarding each book.