Thin tubed aluminum is not damaged prone. Bad crash is a bad crash.
Who said you can't have both? I know you can only build up one when you get home, but why not keep the other around until you have enough funds to build the other? Use the CAAD for racing/bad weather bike and use the R3 for your longer/"nice weather" bike. That way you won't have to decide. A true weight weenie has multiple bikes.
I do have another card in my deck - a like-new 2010 CAAD9-4 frameset that's also sitting at home with the others. It would make possibly the most sense then to use the CAAD10 for training/nice days, and build up the CAAD9 with rival/force, which would be a bad weather bike. The CAAD9/Force bike would also probably make the most sensible steed for my first racing season.
Keeping all three was the original idea, but I don't know if I can justify, financially or otherwise, two nice bikes and another perfectly good one [in addition to the road bike and cross bike I already have].
I might just go double-CAAD and call it good.
CAAD10 is an awesome bike. Plus, you really don't want to be a cat5 guy riding around on a cervelo with enve wheels, that's ridiculous.
I agree - and would generally like to abide by proper conventions - but if we all shrunk from ridicule, I don't know how many of us would riding bicycles at all.