Haven't read enough King to have a truly encyclopedic take. I read The Body as a stand-alone, not as part of the Different Seasons collection.
Read pretty much everything McMurtry wrote, though. And my mother was a trained dramatic actress (state champ, that sort of thing). I recall her reading Texasville aloud on a road trip one year; she did all the characters with different voices and inflections and whatnot (these were her people, after all). It was actually brilliant, and maybe my first "audiobook" experience after my childhood experiences of mom reading books to me as a toddler and such.
On trips with my family to west Texas a few times, I read some Hank the Cowdog books aloud, same style (made sure to have a proper voice and approach for each character). We loved those experiences.
But for the most part, the speed thing is what gets me. An audiobook that takes 8 hours to play out, I can usually read in 2-3 hours or less.