For the street the only advantage is bragging rights and zero (I mean zero) brake dust. When I go to the track I find myself braking earlier and lighter as the rotors are $7500 per corner. Movit makes a $4K/rotor solution with a lifetime warranty, which will ease my mind a bit!
You can find rotors for all 4 corners (OEM) for a 458 for $9,500 if you find a cooperative dealer. I think the list price for all 4 is a bit less than $12K. Having said that, $12K is a lot for rotors. However, they 1) last a long time 2) work really phenomenally (presuming you bed the pads properly) and 3) keep unsprung weight low. I cannot recall seeing any objective comparison about lifetime cost of steel vs. CCB's on a street Ferrari. I would imagine relatively few have fully consumed their OEM CCB rotors unless they track their cars a lot. One data point, I used one full set of rotors in a 458C over a full season, which is forever in racing terms. The number of sets of pads, I stopped counting...
