[John Rogers]

You didn't mention what the bike is used for, I.E. fun rides, long road racer, short criteriums or ?????. I agree with better tires as now many don't get flats like they did when I was racing in the 70's and 80's which can cost lots of $$$$ or cost you a race. The rotating mass is what you worry about if racing a criterium due to being able to accelerate slightly quicker but if racing over rough roads then the rims can dent or get thrown out of alignment.