Another problem that people have with drag racing is that they go for the first few times and maybe they don't get good ETs, so they blame their car and say well, now i better get some more mods. SO they go out and spend a wad of money on heads and intakes and maybe even some power adder, then go back to the track.
Then, since they're still new to drag racing, now they've got way more power but still haven't invested in their skill any and blow off the tires and maybe shave a few 10ths off their ET, and then they're PISSED because they spent all this money and got nothing in return.
Then, i've seen guys go so far as to say "Screw this POS Mustang, i'm getting a turbo Civic". Seriously...i've seen this happen a couple times to different guys i know. They never seem to learn their lessons lol.