Bow hunting offers additional challenges. Typical range for a shot is about 35 yards, where a gun can easily make a shot at 200. Bullets also travel at supersonic speeds. Deer are often known to "jump the string" when they hear the bowstring hum on release, and they can actually duck the arrow. For these reasons, most bow hunting for deer is done from treestands, though that isn't the norm for other game. And rifle hunters also use treestands, but not at the rate of bowhunters. Too, when a medium or large animal is hit with a bullet, it may drop immediately, with instantaneous and apparently painless death. Hit with an arrow, the same animal will typically run off, and you'll find him some short distance away, death being perhaps as long as a half hour later. For that reason, I have a mild preference for gun hunting, but I do enjoy both. Those who think guns are "unfair" are welcome to a compromise: hunting with a revolver is a challenge very similar to hunting with a bow.
Personally, I enjoy both.