Ok, why do people care if it gets scratched? It comes in contact with the environment, after all. It's a *phone*, not art.
Myself, I put a case on the phone because I'm a klutz. I put a screen protector on it because I like a matte screen that I can see outside in the sun. But this dance people do? Why don't you take the phone, and put it in one of those foodsaver bags and vacuum-shrink it so the environment can't touch it? Ridiculous, I know, but that's where this ends up.
I use to be more paranoid about the condition of my phone when I would upgrade every few months simply because of resale value. Now I keep my phones ~2 years and resale is not a concern. It is a lot nicer being able to use a phone carefree.