I collect everything. My plan is to own every item in the Mojave.
I have a really nice, well repaired, set of guns. No shotguns, no heavy weapons, no energy weapons, well except for Ronnie's RCW.
I use guns for dispatching things that interfere with my purpose. Fists too. All that stuff works really well so I usually keep it holstered. Setting up little displays is not what I do and seems rather strange actually.
We did have the wild Wookie build gun huts in Stalker but they were really just big piles of guns he had scamed up. Amusing for sure.