Having to replace the front rotors and all 4 pads after 30k miles. Dealer wants $800+. Any issues with going with non oem parts and saving myself half that price. Plus dealer charged me $55 to inspect it and the car is under warranty. They are not being receptive at all and are telling me it is normal that my rotors wear at the same rate as the pads and that I'll have to dump $800 bucks every 30k miles to keep the brakes up. What do you guys think?