I think it all boils down to how fast the cars go for how much is spent.........

For example.......I LOVE watching a 431" SS/AH car run mid to low 8's (because I understand what it takes to do that)........but for what it costs to build that car (or even less), you could build a car with a turbo, blower, or NOS that would run easily in the 7's if not 6's......like last two years Drag Week winner.......

I really think it all boils down to money..... Average Joe at the track isn't smart enough and/or doesn't have the coinage to get his '69 Camaro into the 9's naturally aspirated, but he can bolt on a plate and get there pretty easily.....

Wayne