While the 920 looks gorgeous on its own, I'd rather keep it prestine the entire time of ownership. I generally sell my phones to pay for my upgrades and the better the condition the easier it will sell.
I put the best skins ever along with an OtterBox Commuter on my wife's 3GS for the duration of her contract and was proud to state that it was in prestine, mint condition in my for sale thread. I sold it and had enough money to pay for her 4S along with a Best Skins Ever and another OtterBox Commuter case. It too will be prestine when I go to sell it and upgrade her to a WP8 at the end of the year. I will be doing the same to my 920 when I get it this week. The Commuter series did a great job of keeping both her phones protected without the bulk of the defender series. The Commuter series is also coming for 920 as well.