Last year I cancelled my Audible subscription for much of the same reason: when listening to an audiobook it is too easy to get distracted, but reading a book is different. With an audiobook you feel like since your hands are free, you can go do something else like gym or household chores, and finding yourself no longer catching up with the audiobook. And that's not to mention you don't feel like you are in control: the narrator decides the pace, not you. But with a book, it's much harder to get distracted and thus easier to get into "the realm of duration."

Since cancelling Audible, I started buying paper books on Amazon and I have experienced much better focus, and much greater enjoyment from the books I've read.