I'm considering the same thing. Selling my Roubaix Comp and Scott Hybrid and getting something like the Diverge or a carbon Sirrus. I love the Roubaix but prefer light trail rides so I'm not riding it as much as I should. I started on the Scott 5 years ago and still tend to ride and commute with it more, but it's a heavy tank.

A Diverge seems to offer all that I'll need in one bike.