Hmmm, I think that's about right. 10-15,000miles and it's done. But that's misleading because just about any bike (no matter what material it's made of) is done after a long season of racing.

That statement in itself is also misleading because you can still ride a race bike after 10-15,000 miles. It won't break.

Also, for non-professional riders, normal use of a aluminum or any bike is in the years. I know someone who trains and races on a Cannondale that is a good 5-6 years old. It still looks great and he likes it alot. Absolutely nothing wrong with it and it's a big frame- something like a 63cm.

I would have absolutely no problem recommending a CAAD7 to anyone and would be sure it would last them for many years.
I don't know about other bikes but the Cannondales are great bikes, plain and simple.

btw, Cannondale is coming out with the Carbon soon. I would take C'dale's aluminum lugs over Look's anyday.