Walk lightly with this, first off most hunters or at least alot, are against the canned places. However not all "kill fee" spots are canned hunts. There are places that are disgusting, 1 acre pens, tame animals etc. There are others that are 10's of thousands of acres. many hog hunts and exotics are in "pens" yet are big enough to make it fair chase.

As for inhumane way to treat the animal, well it's a short jump from penned hunt being inhumane to all hunts, after all they are still killed in the same way, bullet or arrow.