How do you know that is everyone's reason to be there is trendy or bullshitty? - I presume you have felt this way at gigs before, so how have you come to that conclusion? The only way to do that would be to, as you said, go round and quiz everyone on their knowledge of the underground, which is in itself a ridiculous notion. So you have no way of knowing really what everyone's reason to be there is, one can only assume its because they might like the band. But dont go judging people en masse like that because you feel that you are really the only person there who has "pure and personal" reasons for attending the gig. Guess what? I dress like a sap and wax lyrical shite at gigs holding my cigarette like a fop whilst complaining about key signatures, and sometimes get on guest lists and generally am not impressed wirth the cost of booze in the city...if you stood beside me for a second at the gig youd probably put me into that exact category of folk you mention, but I have never gone to a gig for a "trendy or bulshitty" reason in my life. Next time, ask me and everyone else standing around you, you may be surprised to find they are there for all the same reasons you are...