I respectfully disagree with your disagreement
The 2.9 hated to rev, never got any more exciting at the top end, no DFI, the only thing it had going for it was the removal of the IMS. I mean, the car as a whole is better with the PCM3 and the vastly-improved PASM (if optioned), but I found the engine to be very weak. Was yours a PDK or manual? The test car I had for a day was a manual, which maybe just didn't suit the lump.
It's odd that you had such a different experience to me. How many miles had it done? Mine was a manual, and I took it from 18k to 25k miles. I love cars with peaky power delivery, had a couple of type R and an exige NA before it, and found the Cayman liked to rev just as much. The delivery was more linear, so not the same kick they had, but still very good. Most criticism of the 2.9 is lack of torque, which I find a nonsense anyway as it's a sports car.