Having listened carefully to CD, SACD, XRCD, and 33 & 45 rpm vinyl, I don't understand the fetish for vinyl, an older technology that entails additional electro-mechanical transduction processes. Nor do I understand the fetish for tubes as valves that rely on the heating of an element. I suspect it may be part of a popular movement from rational explanation to mysticism that seems to have arisen during the last decade or so. I hope that movement goes away.
Many of you refer to your interest in high-end audio as a hobby, rather than as a means to the end of enjoying music, and in that sense I can understand those fetishes, because vinyl and tubes are so much higher maintenance, and turntables and arms make attractive toys.
db