90% of keyboards I see for sale, have either scratches, dings, or both. Even the aluminum ones which are supposedly tougher have them. I have no idea why they always have surface damage, unless the previous owners throw, knock against walls/corners, drag on rough surfaces or smash them out of rage.
I have carried and transported my keyboards several times in the past and none of them have sustained any damage, and I wasn’t even trying to be ultra careful with them. It seems so hard for me to damage keyboard cases unless I intentionally do it, therefore I really don’t understand how people manage to ding or scratch their boards.
Let me tell you… all of my keyboard case damage has come from another keyboard when they are close together and I’m working on them or just checking them out. All of them. Nothing scratches the keyboard more than another keyboard.