In my first playthrough at level 40 I ran out of useful-sounding perks and started wondering about V.A.T.S effectiveness. There are 25 perks directly benefiting V.A.T.S out of 93 perks in total (yes, I counted), which makes me think that it is supposed to be a much more substantial aspect of the game than I (and perhaps others that are used to pulling the trigger themselves) can fathom.
Is V.A.T.S really just statistics, convenience and cinematic splatter or is there a whole other angle I'm not seeing?
EDIT: I know about Threat Detection and Critical Strikes. I'm just wondering why that would merit 1/4 of all perks being about V.A.T.S when it seems like it is just an alternative play style to FPS. Can someone give me a concrete breakdown of how effectively V.A.T.S can be used? I believe I'm not alone in saying that there might be less obvious nuances to it that justify its existence.