I felt that way about Ron's stuff at first, but then it clicked and he became one of my favorites. I went from thinking, "it's dull, all sounds the same and I don't like his voice" to feeling that I really connected with it. My favorite of his albums is "Whereabouts" though "Retriever" might be a good place to start, if you felt like giving him another shot.
Seems that with the advent of inexpensive cameras and editing software, there are tons of documentaries popping up, whether it's the Mellotron flick, the Raymond Scott film, Harry Nilsson, Scott Walker, Wrecking Crew, The Jack Mullin film, etc, etc. Good times for geeks and fans.