slotted and or drilled rotors

I don't know squat, but my wife drives the hell out of a '03 hemi ram. Thing had 4 sets of rotors and or calpers/pads on it under warranty in its first 50k miles. Warranty ran out, i put cheap drilled and slotted rotors (chinese ****,i think) and new pads on it at 60k. No warpage, no noise, great stopping power. Just my experience with a specific vehicle, but I'm convinced..