Ahh, I see what you're saying now.
I knew you didn't think it was a cosmetic mod, by that I just meant that to protect the paint you have to cover it up. Though bras don't look as good as the bare front end, and sometimes ugly, the fact is that your paint is protected with it and that'* the whole point of a bra. It'* not how the car looks when the bra is on, but how it looks when the bra is off.
Well, I've personally been considering one for my car just to cover up how crappy my front bumper looks.. can't decide which is worse looking....
That'* another reason to use one.
My front bumper is fairly battered which is why I don't feel as bad covering it up.