Similar for me, recently. When I'm really into reading, I can read more than a book a day. $15+ for an audiobook that I'll crush in a day just isn't possible for me. That could easily balloon to $5000/year for me and another $3000/yr for my daughter, and $2000/year for my wife. (I've read a 6-book series, a 3-book series, and almost half a 4-book series in the last week... And didn't sleep, lol!)
We can't afford a used car in audiobook costs each year.
I actually mostly switched to text-to-speech with Kindle Unlimited so authors get paid for most of my reading, but audiobooks I still pirate when I read them. By my napkin math, authors get about 20-30 times what I pay in KU fees based on our voracious reading.