Thanks for all the responses.
I went with the caadx over the caad10 because they gave me such a good deal on a 2013.
Also I liked the ability to be able to put on fatter tires for rail trail rides. I am hoping to ride the greater allegeney passage from pittsburgh to dc on this bike.
MegaTom, what you said about feeling faster on the road bike, but the numbers saying you are about the same was what I was suspecting.