Calling All Book Reviewers

Mark Cuban says The Fountainhead was the most important book he's ever read. As I was reading/listening to my Supreme Court book today, I learned that Justice Clarence Thomas says the same thing.

So I checked it out on audible.com (via I-Tunes) and found out that the thing is 32 hours long. Most audio books run 6 to 10 hours, max.

Anybody know about The Fountainhead? Is it worth the read/listen?