I certainly don't have to make up any excuses for picking the Tiptronic.
I would still be my choice if the numbers where reversed.
Initially i was hoping for PDK, but as always Porsche made the best of what they have to offer right now.

I KNOW!!! they could release the Turbo with 550 HP, but this has never been the philosophy of Porsche, financially or technically.

You should know that in the not so distant future you wont even be able to buy a Porsche with a manual gearbox.
Cost of warranty issues vs manual.
Bulk of customers will change to PDK from manual.
Why produce a gearbox so inferior to what is technically possible: Manual vs PDK

To better calculate financial cost/warranty issues I would sell the car with 2 options.

Tiptronic - Normal customer (comfortable,rarely goes to the track)

PSC (PDK) - Sport oriented customer (for a customer that wants a more active driving experience, for track etc) (Option)

The Manual gearbox has reached the end of its technical evolution