Just got this in my email:
***
Hi there,
To thank you for being a BookBub member, I want to invite you to be one of the first to access our new platform for audiobook deals, Chirp! Chirp offers audiobooks selected by the same BookBub editors you trust at up to 95% off.
I love listening to audiobooks on my daily commute, while cleaning up around the house, and even while exercising. With Chirp I can binge audiobooks and discover new authors without breaking the bank.
The best part is that there's no subscription fee or commitment, and new deals are added daily!
Start getting deals
Thanks again for your membership, and happy reading!
***
The link leads to a signup process, then here, where you can see the deals:
https://www.chirpbooks.com/dealsIt appears Chirp is its own seller website, not related to Audible or Apple, where presumably non-exclusive "wide" audiobooks can be sold and discounted.
Given that BookBub is pushing it, it might be a game-changer for bringing down audiobook prices or offering discounted first-in-series closer to the ebook model. Not sure if this is a good thing or not for authors, but at least it opens up options.