I store mine, as in they aren't on the walls in glass. I'm too worried about theft, having them all packed up like that. I keep mine in vintage wooden boxes, each containing a rotation of about 6 or so knives. The boxes are in a vault and only one box is out for a week or so with my carries.
Some of the displays are great though and I can see why people do it. I've just known that feeling before and don't want to have it again.