There are times when (cars especially) aren't all they're cracked up to be. You dream of how fun your *insert enthusiast car* will be while WOT, or in the twisties, or how fast it is according to automotive publications and youtube videos, but living with it is a whole different experience. Sometimes you get sick of a rough buzzy ride, clutching in traffic and abysmal gas mileage. Plus the upkeep, the payments, keeping it clean and in good shape, worrying about parking, etc.
Living with any given car is totally different than how "awesome" it was when you test drove one, or how great the handing was when car and driver pulled .94 g on the skid pad. That's my two cents. Plus a fast turbo four car is usually dreadfully slow out of boost, like it is 90% of the time, but it's still a noisy rough riding car those times.
Frankly, I think quite a few people buy these cars based on "tested" performance figures. In that respect, they do represent a tremendous performance bargain. However, real world performance and performance car shortcomings aren't something most individuals take into account.