i have a 383 wtih 450 hp and i have well over five grand into the engine bay, i also have a nitrous works kit supplying a lot more fun. why not just build a real motor so you dont need nos you ask? well, why not build a real engine AND use nos that way i really kick your A$$ when you pull up, plus its cool to purge when a stang pulls up and thinks he has a chance untill you rev and a four foot stream of nos shoots out the base of your hood. you dont always have to run it, i race with it on in case the other guy has it and doenst tell me, or if the car im racing is pulling on me, then i hit the button and the race completely changes.
kill list
18- stangs and counting
3- 3rd gens that got confused an forgot they were messin with me
dozens of **** imports
and one 70 chevelle,

got killed list
viper with fogger system, that was real fast, made him give me a ride afterwards..

 

i agree with you completely, if you take the time to build the engine so it will take out most things, and then want the Nitrous to further lower your quarter mile time, there is no problem.
BUT if you just throw nitrous onto a stock engine, and you are ignorant to what it actually does and ignorant to what goes into building an engine, then you don't deserve to even be racing.