Dew and Jb, that is probably true for your larger parcels. I would wager most don't have the means to control that high of an acreage.
Trust me smaller properties, the neighbors can flat out decimate your hunting. Granted we can help by providing sanctuaries and habitat plus not shooting etc. But the deer still get whacked like crazy during the rut. we haven't shot a doe in 8 years and end up with about 1 buck taken every other year. We have better hunting than anyone around that area but nothing like it could be and once was due to the neighbors.