Yeah, I'm with Fae here, if you don't have bodies buried in your backyard, or your not cooking meth and its just wearing clothes that some people would or might say are not 'men's' clothes, so what? In fact, your helping keep the American Economy afloat so keep on buying.
As for how much is enough, put a geographic, or volume limit on it. X amount of closet space, Y number of dresser drawers, and when you get there just do the Zen materialism deal of thinking, 'if I buy this one thing I will have to get rid of one thing at home' it makes for more sensible and sustainable decisions. And relax and enjoy, it's your life. Its nothing bad.
And for the life of me I've never figured out how liberals, libertarians, and conservatives could not agree on something they actually agree on, which is that the government has no business telling people who they can love, or who they can marry. My kids grew up spending a lot of time in SF. When we lived in good old it-don't-get-more-traditional-values-than-this IOWA, we knew two gay couples who we were very close to, who our kids grew up around and it didn't seem to matter. The older one is married and breeding, the younger one is a frat boy who dates cheerleaders.