This surely marks a faint glimmer of hope for all the beaten-down and forgotten formats out there. Granted, the vinyl record has been out of fashion recently but still, a 745 percent increase in Amazon sales marks some pretty impressive growth. So, why the bump? A retro explosion? A new-found appreciation for fidelity in this world of streaming compression? The answer's likely a little bit of both. Also, don't underestimate the power of Amazon's