I went with base also. I always upgrade my stereo, wheels and for brakes, I was the guinea pig for the Wilwood BBK.
I am in Cal so I am not sure how big of an ROI other Cal get out of the heated seats. I would have preferred leather, but as other said, the cloth looks very very good.
I am also looking at the used Cayman market. I was just at the Porsche dealer last night even though not seriously buying. I guess I want to own a mid-engined car b4 I die
If you have not owned a Porsche, I believe you will Not regret purchasing a Z---best bang for your $$$. good luck with your search and decision. Buying a car is always exhilirating.