I would never purchase a wanna-be M3. If they choose to move the price up market, I will simply wait and go used in a year or two.
Price is one of the reasons this car has sold as well as it has. If they choose to raise it much beyond an 8% increase, I am afraid many probable buyers will move on to other cars. As I understand it, the 997S is a brilliant car. It would be very dangerous to come too close to it's range.
My typical usage is ~70K miles. It makes no difference to me if these are from 1-71, or 20-90K miles.