I think a lot of people fixate on the SMF vest as unrealistic for "normal" people. I consider myself a fairly normal guy for his late 20s (though I'm sure some would disagree ), and my normal mode of dress outside of work is jeans, t-shirt, and an overshirt. Until I started carrying appendix, that shirt was usually unbuttoned, too.
I don't get the big deal about gaming with garments either.