My eyes are good to 400 yards. My 8x42 binos are good to 1000+ yards. My spotter is good for miles.
8 power I can hold steady unsupported, and they're easily packable. 10 power and up require support.
Since I hunt, the 8x42 binos go with me, the spotter stays in the truck. I don't have a scenario where I need to resolve stuff more than a half mile in front of me when on foot, so I wouldn't choose high-magnification binos.
