A few people here have mentioned that if people want to look better, they should "take care of themselves." Yes, you should take care of your body, but that isn't necessarily going to make you "look better." (But it will certainly make you feel better.) You look like what you look like. There are some physical features that no matter how hard you try to take care of yourself, you can't change. This is why I believe some people turn to plastic surgeons- they want to change parts of themselves that they know they can't. Then again, it all depends on what type of procedure we're talking about...
I find it quite saddening to see such beautiful people turn to plastic surgery. It's completely understandable for medical purposes, but when it comes to changing who you are, how you were created, it is taken to a far greater extent.