That depends. They always have a lot of great audiobook deals in different genres, including New York Times bestsellers and other trending popular audiobooks. So, theoretically, you could use Chirp exclusively. But if you are looking for a specific book, or even author or narrator, it's unlikely that you will always find something on Chirp that you couldn't get cheaper in an audiobook store with a credit-based membership (like Audible or LibroFM).