While it is true that colorful cars are appealing, especially to the younger generations, it's not exactly cheap to wrap cars, haulers, etc and have all these catchy designs like we see on KTJ or Briscoe's cars.

One thing I have noticed when drivers do incorporate the crazy colors, it is MUCH harder to read their sponsor(s) names on their car. You see it a lot with modifieds. Or maybe it's just my poor eyesight.