Hawk brake pads - worth it?

... Plus, factory iron calipers and rotors are ridiculously heavy, probably 30+ lbs on either side over my current parts...
In reality the cast iron calipers are only about 10 pounds, so the real weight saving is only about 5 pounds per caliper. In return, you have all the problems that aluminum brings with it. Ask Corvette owners. What rotors are you running?