like the others said, for most normal bowhunting, its really not needed...

extreme heights and angles and range, and it can make the difference.

i dont own a range finder but will be buying one before next season....mine will have the angle compensation feature....only because i will also use it groundhog hunting and shoot some far distances through the rolling hills of PA shooting a small target where an inch or 2 will make the difference between red mist in the air and a miss....mauser dont like to miss