I’m not sure that I know the answer to this question, so I thought I’d outline what I think I know, and ask others for their takes about what’s happened to LDS audiobooks.
I have the impression that the market for LDS audiobooks has faded away. Despite a relative revolution in audio, due to technology, LDS spoken-word audio materials are somewhat difficult to come by and not a bit part of the market. Deseret Book seems to be the only producer and, for downloads, the only place to purchase.
A Motley Vision 