I completely agree, but I can't help but note this only sounds like a radical concept in the context of West coast liberals pretending their snobbiness is erudition.
I don't think this is specifically a West Coast thing. My supermarket has dozens or perhaps hundreds of cheeses, and so do large supermarkets all over the US. Surely that's because someone's buying the niche varieties, and going to a party and saying "oh you're still buying brie? you have to try reblochon."