Nick, you continue to occupy the digital nadir when it comes to anything Porsche.
Porsche is more than just a luxury "brand."
Porsche is actually a "lovemark."
A lovemark is a product of intrinsic quality that is above a mere brand or a trusted brand. It is bought on passion and love and will perceivedly enhance a owners self esteem, pleasure and status. Porsche is as much of a lovemark as Ferrari, Prada, Rolex and Dom Perignon.
I think you are too confused, stilted, cynical or just too rich to have an objective viewpoint about Porsche. A few days in a Russian Lada would straighten you out about what constitutes a luxury car.
Maybe you confuse luxury with trim, in that case look at the options and prices in Porsche's Exclusive catalog. Or if you think that production volume negates a products luxury status amongst buyers you only need to look at the sales volumes of other luxury consumer goods.
As for Porsche being "just a good car" like BMW, Nissan or Toyota, try some university courses in marketing, statistics and supply chain operations. You will see wich company is used as the prime success story for luxury goods manufacturers. Hint. They have a track at Weissach.
Some new knowledge would not hurt you ya know.