The only consumer equipment that needs VU meters are recorders. Otherwise they are distracting toys that only add to the cost of gear. Bah Humbug to power meters.
Studies are out there on the webz if you choose to go find them, but the peak of the vinyl resurgence bell curve was in 2014 and popularity is now in decline. Soon it will be back to the grave where it belongs - except for those who own it and love to play with it, of course. Or they could be like me: liquidate a large collection, build a music server, buy lots of CDs, burn to HDs and enjoy the sound quality and convenience improvements and don't look back.
Wow....Here this will make you feel better!