ORIGINAL: SwampCollie
High fence is one hell of an expensive thing. In most parts of the world, surrounding your 1000+ acres with 8' high fence that would keep a deer out/in would cost more than your 1000+ acres did. In fact, I throughly suspect that is the plain and simple reason that you don't see more high fences.
I'm guessing you haven't traveled much through Texas. Lots of high fences and more going up yearly. And more and more are less than 1000 acres, some considerably. And there are quite a few people who will spend money when they think they can make it back. I can't see it going away anytime soon. At least here in Texas. There is a lot of scrub land that's not much good for anything but deer, turkey, and hogs. Not a lot of way to make money off of it.