Well, I am yet to see an ad for the BRZ. Maybe other people have. But I continue to see the red FRS commercial daily.
Also, the three owners who have bought the car from our dealer were well over 35. The very first buyer was a lady who looked like she was in her 50's. She had a tea cup dog and looked like she was struck by lightning the way her hair was stood up.
So I'm pretty sure these people weren't following internet speculations for the past 3 years on the new future of the 86... I think sales people are introducing these cars as completely new cars, never done before, yada yada and could careless about the sheer performance these cars have to offer.
And as far as FRS/BRz sales comparison, I think a ton of people want to replicate the Hachiroku rather buying a completely different brand.