I am now firmly convinced that Mr. Butcher has great plans for Harry Dresden, Chicago's only professional wizard. In "Blood Rites" the focus of the narrative has undergone a significant shift from its original focus on Harry barely managing to survive his encounters with a growing number of enemies to Harry and his friends learning what the costs of survival really are. The character developments are steady and interesting. Please notice the plural, "developments." Harry is no longer the only one gaining maturity and depth, and the story is much better for this change.
On a completely unrelated note, I was really impressed with how Mr. Butcher handled the erotic films angle. He showed both the breadth of the industry from the real people who eke out a living to the monsters who use it to prey upon others. In what sense to take the narrative metaphorically is an open question. How much are the produces of pornography people versus monsters? Who are the true heroes and villains? That Mr. Butcher forces his reader to ask this question though is an excellent mark to his credit.