My white 1020 also has some hairline scratches on the screen. The side of the phone turned a little shiny. The back of the phone is still matte. It's holding up pretty well considering I've owned it for more than a year now.
Got brave went out to pub without case and ovcourse phone met with yorkstone flagged floor luckily just a small crack in top right corner of screen and tiny scratches on back near camera module which are hardly noticeable
No scratches on the screen and body, except on the plastic cover of the xenon flash and a small ding near the SIM door (caused by my metal flashlight hitting it lightly on the bed, but I managed to flatten it back). Sides are now shiny, and some areas of the back have also lost the matte finish.
What about wristbands? This is the first phone that I've chosen to case (I have four, plus the grip), because it's the first phone I'm always pulling out and keeping out for photography. These posts may inspire me to go back to naked, although my yellow grip -which I still need regularly, anyway- is currently marred in black because I dropped my black beauty on asphalt a few weeks ago prior to engaging the wristband.