I can't believe everyone gives the OP such a hard time.
The Note 4 is a scratch-magnet. Even the metal around the home button is already scratched, and I'm OCD with my phones. I have the Note 3, still mint condition, but the Note 4 after two weeks? Scratch city. Dedicated pocket, micro-fiber cloth, no drops, doesn't matter. It's not from silica (like sand) either because it's not deep enough scratches to be from that.
Bottom line is, they used the cheapest aluminum I've ever seen on a phone - let alone an $800 phone.. I'm jumping to the Nexus 6 based on this alone.. in 12 months the Note 4 will look like it was in a war.. sad because I love the phone itself, but I can't stand something that scratches for no reason when I paid that much money. I was considering maybe trying the Edge but I bet they used the same crappy aluminum on that too.
Oh and the home button? Use fingerprint unlock for two weeks, I promise you will see a TON of micro-scratches on it. Don't know what material they used for that but it's not Gorilla Glass I can promise you that!
I am the opposite. I have had mine since October 13th and have no scratches -- and I run the phone naked .