Posting to pose another option: what about Time and Look? I am in a similar position as the OP but in the $5k bracket. Currently looking at the Look 765 Optimum+, Giant Defy Advance Pro 2, Specialized Roubaix Expert.
I only pose Time and Look as I hear wonderful things about their quality control when compared to Cervelo, OPEN, and others. Apparently they make wonderful CF.