Not all carbon fiber is alike. There's cheap carbon and high quality. I'll take Ti over carbon fiber any day. I remember a guy telling me how great his carbon fiber bike is and then told me that the frame cracked on a ride and he walked home. That guy will be riding that Burke 20 years from now. Good luck riding carbon for 20 years. I own a BMC and Felt carbon fiber bikes and I'll can't imagine riding them 10 years from now.
The bike I rode must have been $ 7000 or more. I've seen the crank online for over $1000. Everything was the best. I asked if the bike weighed about 17 lbs. and he said 18. If he told me 15 lbs I would have believed him. This is an American made bike. I'm not going to get into difference between imports and American made but I know I feel better buying from my fellow citizens.