Some people have difficulty listening to books. I think you need a decent block of uninterrupted time. Maybe it depends on the book. I most recently listened to King's Duma Key. I have to say I was really looking forward to it, having thoroughly enjoyed On Writing and Lisey's Story. I found it hard to listen to, however. Maybe I'd have read it faster. Maybe Lisey's love story made the characters more sympathetic. I'm leaning toward the latter.
A few books that were easy (actually fun) to listen to:
Blink
All the Pretty Horses
Collapse
The Castle in the Forest
The Plot Against America
The Bonesetter's Daughter
The Red Tent
The Road
Never Let Me Go
When We Were Orphans
And there are quite a few others.