I don't think snobbery and obscurity are necessarily the same thing. There are just as many Classical music snobs as there are those that champion more relatively unknown music. Whether obscurity itself is in decline, I think it's the opposite. I remember a time when a band weren't even deemed to really exist unless they'd made it onto TV or a music paper. Now literally millions of bands appear to be existing obscurely on sites like myspace. It's probably possible now to listen solely to music that's never had a single 'official' release.
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