I have the same issue but I chose to buy a black sillicon protection case. Looks nice even if the middle frame is scratched, as long I don’t see it ;-)
If the buttons are not working. The only way to fix the issue is to solder a small wire on the zebra ribbon. I did it and the buttons are working fine again.
Here below the tutorial I followed to fix the buttons. Look at the picture to see how to solder the new wire on the ribbon.
https://forums.pebble.com/t/watch-button...
I had to redo my fix another time because soldering was not good enough the first time
If the buttons are not working. The only way to fix the issue is to solder a small wire on the zebra ribbon. I did it and the buttons are working fine again.