Maybe a more general way to put it would be: no matter who's making your rotors and how much reputation they have, rotors are a throw-away expendable item in the long run. All rotors eventually fail. A light-duty OEM rotor lasts a little while street driving, and if you're doing more than that and you "need" a better rotor, that means you're also hitting that rotor harder. In the net, they're still gonna be dead on a regular basis. Think hard about whether whatever the rotors cost you is something you want to toss out the window on a regular basis
For example, Z1 has some awesome OEM-replacement rotors that you can order slotted for $198 a pair (front or rear), made from good quality blanks. To me right now, that seems like the sweet spot for rotor price/perf unless you're on the really serious end of tracking/racing the car. I'm probably going to be picking up a set of them in the next few days, but I need to sort a few things out first:
Akebono 370Z/G37 Sport Package Performance Rotors