Why you need it?
For moments when every frame matters.
For situations when even blinking seems unreasonable.
Touch the screen once and its on. Instantly.
Dont waste a second. Dont miss a thing.
Its plain simple and simplicity is exactly what you want when you witness your babys first steps, your friend finally nailing the trick hes been working on for days,
or just your cat looking absolutely cute.
Something will happen.
Be prepared.