I also found the Car and Driver test reports very persuasive. In the pre 718 models, the $10K price bump from base to S got you some reasonable real world performance difference, but not in the 718.Which to me explains the 4.4 vs. 4.3 zero to sixty times for the base vs. the "S" by Car & Driver Mag.
That being said, with the nearest dealer 7 hours round trip, I couldn't test drive them both before ordering, and I'd never fault anyone opting for a larger/more powerful engine in sports car, even if the times when you can really make use of the extra performance on public roads are far and few between.
My 718 is now doing winter duty, and the last thing I need on snowy winter roads is more torque. So always keep in mind how you are going to use your car.