If you are a devoted vinyl collector, an obsessive music fan, or — as is often the case — both, Discogs is very nearly a lifestyle. The site has become the internet’s foremost database of recorded music and one of the most extensive marketplaces available for physical music media, with every bit of it generated and offered by users. You can catalog your collection, look up information about even the most obscure artists, cross-check record store prices to see if your local shop has a…