After much debate and marital discussions I am finally getting a good tri bike. Up till now I have been the crazy lady on the road bike from high school. This bike is going to be my birthday, Christmas and anniversary gifts all wrapped into one so I am not going to cheap out but I do not want to buy way more than I need. I went to the bike shop to get measured, the bike guy said that with my build (5'5" very short torso with long legs) I would be best suited to a Cervelo. He has two Cervelos in stock one with an aluminum/carbom frame for 1999.00 and one with a carbon frame for 2400.00. The bike guy says that the advantage of carbon is not the weight but the smoothness of the ride. I plan to have the bike forever and ride it alot but I am in it for fun and fitness not to be competitive. Is all carbon worth the extra money?