IMO CF or more rightly put plastic bikes are all the rage right now. But----------------------there are still a lot of steel bikes that are more than 50 years old and still very serviceable. Lets wait and see how serviceable a 50 year old plastic bike turns out to be. The fact is plastic doesnt age well. Of all the materials that bike frames are made out of I favor titanium. A titanium bike quality built is pretty much timeless.