Try shooting at a 3D course. Shooting in your backyard, at your Block target, from 30 yards, every single time... gets kinda boring. I like to break it up, and shoot from different distances, odd angles, etc.
Anymore, bows are so accurate, and forgiving, that you really don't have to shoot hundreds of arrows every year, to be able to consistently hit a target at 30 yards, so you've got that going for you..
But, if you really don't enjoy shooting your bow, why are you bow hunting?