Intellectual Value: Audio Book vs. Reading

[Evan Parker]

I pose a question to you all out there. What is your opinion on audio books versus reading the actual text from the book yourself (whether that be on a Kindle or physical copy) as it relates to intellectual value and information retention?

And when I'm using "value" what I mean are things like this.

Especially with a topic like REI.

All feelings and thoughts are welcomed!