To effectively use the ballistic plex, you'd have to make a shot at 300 yards or more. Shots at 200 yards are flat enough in most cartridges so that you can just hold over with a regular plex. Making shots at 300 or more require an accurate set up, as well as some sort of resting. Also, if you are going to shoot at 300-400 or more, you might want a laser rangefinder so that you can select the proper holdover with the ballistic plex. These are long shots, and if you're a sportsman, you'd want to make sure you can make a clean shot at such ranges, so you'd need to be rested, as well as have the exact yardage for holdover. I don't know what the % of hunters taking deer at over 200 yards are, but I'd imagine that the vast majority is under 200 yards.