cost no object, carbon here as well... but cost is an object in reality for most people... so it really becomes more of a question of higher end AL or lower end carbon... only a few co's make AL bikes with DA or Red from the factory, most (not all) stop at 105ish level components... would I rather spend ~$3k on a CAAD10 1 or would I rather have a SuperSix 3 for the same cash?? I'll take the SS 4 and upgrade the crank to force and shifters to Red then call it a day, thank you very much... as light as the DA caad? maybe, maybe not, but the ride quality would be worth it to me if I could afford a $3k bike...