Out of curiosity, I bought Moondog's first Columbia LP when it was released and couldn't get into it because I felt the music didn't go anywhere. Years later, I bought the first OJC reissue. Went back to the Columbia and was able to accept it for what it was. I've since gotten into the second OJC and Sax Pax for a Sax. I just hear his music as Moondog music, and it has a certain charm for me.
edit - I do agree with some of what Allen said about the later work but, for me, the charm overrides the repetition and the naivete.