I upgraded my 5S to 6S on 27 Nov. In the past I have had the first iPhone, 3G, 3GS, 4, 4S and 5S and as i always keep my phone in its own pocket with nothing else, I have never had a scratch before. As I now only get the "S" versions both my 4S and 5S were 2 years old when I replaced them and they didnt have any scratches at all.
My 6S is under 2 months old and is literally covered in tiny scratches and even has a few deep ones. Apple have dropped the ball with the 6S glass.
If Apple has traded its previous fantastic scratch resistance for a screen which is less likely to break if its abused, I wont be a happy bunny. I know lots of people break the screens on their phones but that is because they just dont look after them. The only way a screen will break is by rough treatment. And before people start claiming their phone screen broke all by itself, think again... They only break if they are dropped, crushed, bent, set fire to, stood on, ran over by a herd of elephants or other similar abuse... FACT so live with it.
Changing the glass to protect "Some" careless users at the cost of "All" users who actually look after their phones is not acceptable when we pay so much for them.