Expensive? The angles already exist in the game, the only issue present is the ability to switch to the view while you're taking your shot.
I get into situations where I'm at a straight line to the hole, but there's 20mph cross wind, so I zoom in to aim the shot, but it will put me at this funky ass diagonal angle to the hole, and it will shot my shot going over the water or an arbitrary sand trap that's not even close to where my ball should be going, and then show how, even though I'll ding the shot and be aiming 40 feet right of the pin with a 20mph cross wind, it will somehow make it's way over into the left rough, no where near the green.
I guess if they don't make straight camera angles to the hole sometime, I'll have to learn to deal with shooting these random faulty distance/angle holes...