For me the adaptive drive was not necessary and I am a current sport motorcycle rider, former cycle racer and former Boxster-S, Supra Turbo and Mitsu VR-4 owner. But currently, I live in FL without a single mountain road and drive around two young sons.
Judging by your passonate email, you will REGRET not getting the adaptive drive. A few hundred miles on a demo are meaningless particularly compared to the tax write off. Get the silver bullet.