Considered it, but acquired a used 2006 ZO6 that I might have have Katech or Lingenfelter "breathe on" just for fun.
Haven't bought a used car in a long time, but this car had good bones. Low mileage (16,200) known to my Chevrolet (dealer) Corvette technician, maintained properly by previous owner (at the same dealer) and not abused. The technician called me on the car when it was traded, and I bought it later the same day. Previous owner traded this Zo6 on a new Camaro SS, so I guess I indirectly helped the General sell a new car.