Wow, that's a lot of listening.
I have trouble with audio books myself. I find the static voice detracts a bit from my imagination developing mental images of the characters.
I tried a couple where there were multiple actors doing voice overs, so to speak, but let's just say they should have stuck to being waiters.
They are a great alternative medium though. Definitely a wonderful thing for the vision impaired, elderly or people with dexterity issues, long road trips or people who just enjoy the style.
Sure is a lot of listening, I only got through the intro the first night. Audio books are easy for me since with my dyslexia I have to sound out the words in my head (use to say them but teachers bitched me out until I learned not to move my lips) so listening to someone else read it is actually easier.
Their quality sure is hit or miss depending on the reader. I really like James Doohan’s readings of some of the Star Trek novels. He imitates the other actors sometimes and they add other actors, sound effects and music from the show which makes it much more like a radio drama.
They are great for driving to and from work and like you said for long road trips.