As far as money goes, to put up a high fence it costs around 12,000.00 per running mile, some ranches will never sell enough hunts to even pay for the fence being put up in the first place, which leads me to believe its not about the money!!!
The game ranch here in Mecosta sells hunts in the $12,000+ range. Are you telling me they are not making money?Taking the standpoint that the deer do run the fences only works when it is a large area and only on one side. If 2 or 3 of your neighbors put up high fences they will not be on the property like they would be without a fence.
QDM is another problem in my opinion. I have deer hunted since I was 12 and the biggest buck I have shot is a 4 point with my bow. We have 8 point bucks running around but they are not stupid and we onlyshot one once in a while. When I do shot an 8 point I will be extremely happy and it will probably go on the wall. WithQDM especially in high fences, someone takes their kid in to shoot a management buck (8 points) for their first deer and it is taking all of the special, meaningful, challenges and accomplishments out of hunting. How happy will that kid be shooting a 4 point? How many 8-12 point buck mounts do you have to have on the wall before they are all the same and no more importance to you than a spike or a doe? It would get to the point where it no longer felt like hunting and you were just killing. I have no problem with the neighbors getting together and saying "hey guys lets let the 4 or 6 pointers go this year"but the high fencers take it to a whole new level.
As for our 100 acres goes, there are 2-3 of us bow hunting and 4 rifle hunting. We have more than enough land for us to hunt safely. The neighbors are from the city and often have 6-8 people on their 50 acres which is 95% field. We are not throwing up a high fence to keep them out.
As for the fences are to keep trespassers out, that is what the laws are for, if they don't work then the penalties should be higher. If a trespassers cuts the fence and goes in you are relying on the same laws you didn't trust to keep the trespassers out in the first place.