OCD Broken?

I just read "The Lies of Locke Lamora," which was a fun book, sort of an urban epic fantasy with elements of Ocean's 11. I have the sequel, however, and I have not yet read it. I have, in fact, read other things since finishing the first. I mentioned a while ago that I seem to have this recent OCD about finishing series when I start them. I wonder if it's broken now. Of course, it could just be that while Lynch tells an excellent story, he uses the fairly generic modern epic fantasy style, and 800 pages of that is enough for a while. Probably once I start "The Book of the Long Sun" I'll have to read all of it.