I'm not a fan of high-fence in its stereotypical form (not much space).

800-1,100 acres (as outlined in the first video) is about 1.5 square miles. Not too limiting.

In Africa, it can be essential to maintain a species, like Texas housing a lot of game that would simply get wiped out. Large area high fence hunting, like in this article: http://www.cbsnews.com/news/can-hunting-endangered-animals-save-the-species/ is something that should be considered. However, no real hunter would hunt a deer on 90 acres (fenced in) like I see in places like Wisconsin and the like.

If I bought 1,000 acres - you bet your bottom dollar I would put a fence around it. Here are some great animated gifs on how much bucks and does actually move around (Amazing Video... Researchers from Penn State, U.S. Geological Survey, Pennsylvania Game Commission, and Pennsylvania DCNR Bureau of Forestry )

Doe: http://ecosystems.psu.edu/research/projects/deer/news/2015/hillside-doe2019s-hiding-spot

2 year buck movement: http://ecosystems.psu.edu/research/projects/deer/news/2015/the-life-and-times-of-buck-8917

Like I said, I'm not a fan of high fences if the area is too small for natural movement. 1,000 acres is 1.5 square miles.... that might be too small for more than 5 bucks and 30 does. But less than that - not going to affect them much, in my opinion. But I respect anyone's opinion about it. I just think it can be used for good sometimes.