I think so effect;
Not as meaningful and that we can realize and be able to demonstrate, but yes, if:
Although deactivate the detection of S-Pen, the Note knows what he is interacting with the screen is not the finger.
Although we deactivate the detection of S-Pen, to open the keyboard (if the option you have selected) is changed to the recognition mode automatically writing.
Although deactivate the detection of S-Pen, the AirComand, it automatically runs in the background to disengage the S-Pen; waiting to be "called".
Although deactivate the detection of S-Pen on the S-Note app of the same app knows if we ecribimos with the S-Pen or your finger.
Although we deactivate the detection of S-Pen, trying to make the gesture of "Zoom" with a finger and the S-Pen while not performing the action.
They are things of everyday life that one is seeing and discovering
These are all things my'll look insignificant to pay attention;
but of course ...
I speak from my use the S-pen, Minimum, I guess a person especially in the areas of work that a more intensive use and if to this we added that uses all the "extras and functions" of the S- Pen qe think there if the battery is affected.
I think everything is relative in consumer issues, much has to take into account each person and / or use.