One of the criticisms I hear of Audible is how expensive audio books are, and I sympathize. Many of my fans save credits or scrimp to buy my newest book, and it's discouraging for authors, who know a new listener probably isn't going to risk $20 plus to try her book.
Lately they seem to be getting it, and I have had two hopeful signs. One is that they put my old MACBETH'S NIECE release (written as Peg Herring) into a special romance category that gives readers a price break. The other is that they're having a sale this week (Feb. 18 to 25) on "First of a Series" books, and they included THE SLEUTH SISTERS for less than $6.95 (whatever that means!)
And since Book #6 is in the works, you'll have some enjoyable listening ahead!