I'm not going to argue, it's each to their own mate but here's some of them..

Closed loop boost control.
Launch control.
Flat shift.
Progressive NOS control.
Fully sequential fuelling.
Lean warning light/beep.
Shift change light/beep.
WBO2 Closed loop fuelling.
Switchable fuel/spark table.

I use all of these except the progessive NOS control and sequential fuelling! But if I did have NOS then I would and if I wanted better economy then I'd run sequential too... I dont see why if your car is 20 years old or 2 years old that you wouldnt want all features available... But again thats just me and everyone is different.