I agree with theyarecoming4u in one respect - anything that makes a game feel more immersive, more "real" (as "real" as a sci-fi shooter can feel anyway), is worth doing. It is certainly exactly what I want. Whether it's ultra intricate reloading animations, dynamically moving clothing, awesome hair-blowing-in-the-breeze animations, what have you. If it helps improve the illusion that makes you forget you are playing a game then it isn't a waste regardless of what internet know-it-all blowhards say.
“The greatness of a nation and its moral progress can be judged by the way its animals are treated.” - Mahatma Gandhi