Why Buy A Porsche?

I've been suspicious about why Porsche is so profitable. They don't make many vehicles, approximately 100,000 pa. However, Porsche are so cashed up, they have just about taken over the VW/ Audi/ Skoda/ Seat/ Bentley/ Lamborghini conglomeration. I came to the conclusion that must make mega profit on each unit sold.

Then I started reading the Nissan GT-R vs Porsche 911 Turbo comparisons. Every