I killed, what at the time was my biggest buck, because I was sitting bored in a tree marveling at the clarity of my new SLC 10x42s. It was about two hours before dark and I wasn't really expecting much action until sunset. My Swaros were new and I enjoyed just looking through them at the brush focusing on various objects, limbs, leaves, squirrels, etc. Doing exactly this on a ridge about 90 yards away...wow huge rack moving through thick brush. Grunt tube...nothing. Frustrated loud grunt...he turns and makes his way right to me.
Silly anecdote! But don't discount binos in the whitetail woods!