I use credits for books that cost more then $12 and I buy with credit any book that costs more. I buy those 3 credits for ~$35 packages as needed. It's really

I use credits for books that cost more then $12 and I buy with credit any book that costs more. I buy those 3 credits for ~$35 packages as needed. It's really cool that any book on audible has a maximum price much lower then if you were not a subscriber.