36%? Yeah right. The people who were scratched disproportionally probably went to the poll to complain and make their angry voice heard. I highly doubt that over 1/3 of iPhone 5's CAME scratched.
BTW mine has 0 case and 0 scratches.
Because Apple needs to be perfect
I just got mine from my carrier. It had cosmetic issues out of the box (they really aren't scratches, is more like spots missing paint mostly by the seams, and dings on the polished edge but those are painted). Went to the Apple store for a replacement. No problem. Five phones that they brought out to replace it with were worst or equal to the one I had originally. They all had the same type of cosmetic issues. The store manager took notes and asked me to come back in a month or so wen they have figure out what to do. By the way, the display units did not have the problem.
Just to add here, there are a couple of problems.
1- Apple advertises their perfection and their perfect manufacturing process for these phones (see Johnny Ive's video at apple.com) that is why people expect more from them
2- the phones are coming like that out of the box, not scratched with use. Nothing like the ones in the pictures on the website or the banners in the store.
3- people are already used to Apple's aluminum products. I have two original iPod minis (blue and pink), an iPod nano (black), an iPod shuffle (orange), and an iPod touch (1st generation with dark silver aluminum rim), and none of these products came with scratches or missing "paint" out if the box, and they don't scratch simply by putting them in your pocket with nothing else. I did not include here the laptops (MacBook pro and air), iMac or original Apple TV because although they are made of aluminum, they are not carried in a pocket.
4- the problem as reported by the idiot who decides to scratch a display unit with his keys should be classified as vandalism and does not reflect the problem described by many others here
So, I think there is definitely a QC issue. By the way, the phone I'm talking about is an iPhone 5 64 GB black.