Is this a sign of audiophile-resurgence? Best Buy now sells Samsung tube-gear. You didn't know Samsung did tube gear? Me neither, and Best Buy makes little effort to explain this directly but check out their sound bars and wireless woofer packages. No details on the tube types or expected life but they appear to be used in the preamp stage and are marketed here as offering a warmer, more vibrant sound. Cue the scorn of some who think they know better but this a fascinating turn.