A buddy here in PA took a Giraffe with a bow last year........he said it was one of the hardest animals he's tried to hunt (And he's killed Mt. Goats, and Sheep and a bunch of African game) He had to build up a custom 1000gr arrow for the hunt.
He actually made 3 trips to Africa to get it done......something about them being 20ft tall and no cover and trying to stalk them.
He got his on a spot and stalk hunt.......it would be like trying top sneak up on a guy in a treestand with no other trees around to hide behind. LOL

The Trophy fees are what keep the area alive, and the meat is all consumed by villagers. NOTHING goes to waste.