I've played a couple of carbon fiber guitars made by a company called "Composite Acoustics" and they were pretty good. I think the price
point is too high on them, though.
I am a professional musician, and I own Martin and Taylor acoustics. I take the Martin on short trips (I've roaded it for 25 years -- it's pretty tough) and might take it to live aboard. My brother owns a custom made classical guitar from some famous guitar maker who makes like 4 guitars a year, and he had no trouble keeping it as a live aboard in Charleston, SC. You just have to take precautions.
Instead of spending thousands on a carbon guitar, I'd be tempted to spend $200 - $300 on something like an Ibanez or Washburn acoustic. They sound OK around the campfire, and if they fall apart, just go buy another one.