Well reading and listening activate different areas of the brain, and exercises different mental muscles. But at the end of the day, I think it's really just personal preference. You might not be missing out on anything at all, personally.
I'm not the poster that claimed it was a Hill To Die On, but I mean, for me, perhaps I'm just dying on the hill of verbal pedantry that listening to a book is not, by definition, reading one. Because I'm on surly, therefore I'm an asshole.
Personally, I enjoy reading, because I enjoy holding something solid in my hand, and the act of marking progress page by page. I also like that I'm forcing my brain to construct a word, then have to reach for the imagery associated with the words strong together and create the image in my head. I think reading is better for stretching and reinforcing vocabulary than listening. I like re-reading things, as other posters have said, if I find it striking or touching without having to hit the rewind 15 second button over and over. But that's just me. It doesn't mean I won't tell people who watch the movie instead of reading the novelization of a movie idiots, or wrong, etc.
Also, just to remind everyone, including myself, that Elon Musk is a fucking piece of shit.