LG,
I'd agree with everything in your last post, but add that; yes, "this place" starts with being what you shoot by being a doublegun site, which puts it about obscure guns which are mostly more expensive than other guns, some greatly so. Since the membership here seems to contain mainly middle/upper middle economic stature people, they may have interest in seeing, hearing about, reading about, or even owning what's percieved as a high quality gun. A thread on an Ithaca 410 7E seems more interesting than a Huglu to me. 'Seems like normal aspirations to me.
What a man shoots reflects something about a man, what it reflects may not be easily discerned by the causual observer though. It could be one guy shoots a beat up M12 because thats about all he can practicably afford. Another guy may shoot the same condition/make because it brings back memories of his dad shooting this gun, even though he can now afford that H&H.