Do you enjoy your car more than say Pats300zx? He put 26 miles on his Z last year, but just loves to show it. He gets as much enjoyment out of that as driving the car.
My philosophy is why go for astronomical amounts of horsepower when you can just buy more Z's for the same amount (or less) than people pay for motor builds and turbos. :-) I learned from others that it's just better to enjoy the ride. Too many people mod their cars and end up selling them sometimes even before they're finished with the project.