I've always wondered that why in most of FPS games, You can rotate camera view very quickly, (almost zap to look in any direction, along with your handheld item's bearings). Though there are plenty of camera and character movements in games which defy inertia of motion. But this one stands out to be most common. So my questions:
Is there a specific reason for this ?
How will be the overall gaming experience affected, if first person camera is constrained to move realistically, using real data collected from human head and eye movements ?
For example in a FPS match, if all players have some constraint like, how fast they can turn and look at something, that heavier equipment will take more time to bring to bear, that they can't immediately stop from a sprint etc. Will it ruin the experience ?
This question might be in Game-dev SE but I'd prefer gamers opinion on this.

this question will likely solicit debate, arguments, polling, or extended discussion.We don't do discussion here. We're not a forum. – fbueckert Oct 9 '12 at 15:39