Actually the equivolant surface area of the phone to scratch would mean a fist sized scratch or scuff on a car, nobody would accept that would they? Dead pixels are a manufacturing defect, bad proximity sensor is a defect, loose radio button that shakes and rattles anytime you go over a bump would piss tons of people off, you're downplaying the severity of it.
If you are going to start splitting hairs on posts I'll do the same thing. I'm sure there are some people that would accept a fist sized scratch or scuff on a car, can't really say nobody. Side not no one is talking about substantial manufacturer defects, we are talking about scratches and scuff that are only noticed in the right lighting at the right angle while using a magnifying glass. All consumers are entitled to a perfect product at the point of sale but I don't know anyone who examines their car the same way some people on this forum examine their iPhone.