It's a personal preference. I'd agree that if I didn't have one, I wouldn't need one 95% of the time. But if you scout and hang a stand on the spur of the moment and hunt, they can be helpful. One such piece of public ground I hunt is that way. I have few regular stands there and will hang a stand and hunt right then. I have in the past measured off distance, steppped it off, whatever, but that leaves more and more scent in the area. When gun hunting around here I seldom ever use it. I always have it with me but I bought mine for hunting out west. It was after the fact that I seen they can be helpful bowhunting also. Although they were probably intended as a long range tool, they work well at short rang also. I'd say if you have the money to spend, go for it. They're not a necessity for most folks, but can be nice in the right situation. Whatever you do, don't let a rangefinder take you away from practice at different ranges and practicing judging distance. A range finder is a tool, not a substitute.
We cannot continue to do the same things and expect different results