To build a fast pure 93 only setup ramps costs up dramatically. Example build a low 9 second TSM combo and turn the boost down to 16-17.. it will run 10's all day long. The point is the cost to build a low 9 sec combo vs building a 10 second capable combo and run it at higher boost with meth spraying.. there lies the point. There is always a cost associated with going faster.. and the persons ability to absorb that cost.
If I could afford to run race fuel all the time I would. The point is I can't simply put, and still afford to buy things like new tires, safety equipment, new mods, etc..
So the guy that builds the high dollar TSM combo and detunes it to run high 10's... knowing it can go low 9's.. how long does he leave it detuned? How long is he happy going to the track and losing to cars running mid 10's? Or worse.. his buddy that beats him by 1 car length.. Answer this one and you know where you stop.. one has to come to grips with how fast one wants to go.. and what you'll do to get there.
ummmm that is like having a georgous wife that... well you know Drive the damm cars like ya stole em.