It depends on what you're hunting and how you're doing it. They're nice for sitting in a treestand and measuring to reference points without pacing all over under your stand but honestly, if I was still hunting whitetails exclusively I wouldn't have spent the money on one. Where they really shine is out in the wide open spaces of the west or in steep mountainous terrain with lots of deceptive gulleys to estimate across. I've had one for years but never really needed it until last summer. Up to that point all my shots were under 20 yards, then I had a band of reindeer that just wouldn't let any of the big boys within 35. Knowing the exact yardage out over 35 becomes real critical. I ranged a decent bull at 39 and put one right through his heart. It was nice to have the confidence of knowing the yardage that the rangefinder provided. They're also a great training tool for 3D shooting. Hike around and estimate the yardage to something then laser it.