Well, I think people have different reasons for buying outlandish vehicles. Consider Jay Leno--he doesn't need to roll around in a flashy car to get special treatment or demonstrate his bankroll, but he's really into the wonderful variety of mechanical approaches and different driving experiences. On the other hand, you have people who know nothing about cars or driving, and will never hit the racetrack, who buy a Porsche Turbo or Lamborghini because it's attention-getting and expensive for its own sake.

I don't own a Ferrari, but if I had the means for an expensive track car and a trailer (i.e., nobody would even see me driving it on the street) Ferraris would be on the shopping list. I suppose the purist's solution would be a race-prepped 911 GT3 however.