This may be my inner insecurities talking (yes, it is; I just checked), but I would be largely fine with a carbon bike for sporting purposes so long as I could replace the carbon fork with a steel one or even aluminum.
The one thing that scares the daylights out of me about carbon frames is the possibility of a fork breaking. I have seen several examples of broken forks at dealers, as well as warrantied forks that appeared to be largely fine to the casual eye, but it would sure be easy to miss some of the warning signs, like a scuff-damaged clear-coat. I know carbon forks are well-proven in millions of miles for manymanymany users and are the order of the day in competition, but still...a failure there is more likely to have tragic consequences than at some other point in the bike frame.
Danneaux's Seal of Qualified Approval on the Domaine's alu fork, though I wish it was steel 'cos steel is um, "real".
Best,
Dan. (...who has found the monster under his bed in this one)