These rotors were not the cheapest, but surprisingly, they were also not the most expensive. I could not be happier with this purchase. Prior to these rotors, I used similar performance rotors for slightly cheaper. The quality of workmanship shows in these rotors. The entire rotors, inside and out, is coated with an anti corrosive chemical. My previous rotors had developed serious rust inside the veins of the rotor after 2 years. These rotors, look like they will last much longer.