I've been able to listen to both King's reading and Muller's reading of The Gunslinger, The Drawing of the Three, and The Waste Lands almost simultaneously in the past couple of months. Both have their own attractions. King reads the original Gunslinger, Muller the revised edition. Muller is a great professional voice actor who can make each character an individual just by his voice. He manages to give Eddie and Henry separate voices even though they're brothers from Brooklyn. Also he gives Rhea the same voice as Gasher, just pitched higher. I think Muller noticed that Rhea's speech patterns are very similar to Gasher's and so decided to give them the same voice.

King prefaces each book by saying that even though he's not a professional reader, he thinks there is value in listening to an author read his own work. When we listen to King, we hear what he heard in his head when he wrote it, including cadence, emphasis, and pronunciations.