I wouldn't leave home without my binos. There's lots to look at besides deer. And, I'm interested in seeing what I can't see clearly with the naked eye, particularly when I'm still hunting, but also on stand. Movement in the brush, a dark spot/shape at 50 or more yards, etc. Sure, it's too far for a shot, but I still want to know what it is. May determine if I go into stalk mode or hunt that stand again.
Too, there are ways to use a binocular to determine range. Put a few marks on your focusing ring at known distances, and you have a makeshift range finder. They can also be used as an aid in tracking wounded critters. By varying the focus/image crispness back and forth on vegetation, it's often possible to determine the path of a deer through grass, heavy brush, etc., even where there is no blood.
For me, binos add a whole lot to the hunt. I wouldn't be without them. I'd also recommend buying as good a glass as you can afford. Vortex, Bushnell, Leopold, and Nikon, and probably a few others make some pretty good glass for a couple hundred dollars or so.