Frustration with poor quality used vinyl overrated by sellers was one of the reasons that I got out of vinyl a few years ago. Also, some remastering is poor. You do have to be selective. However, pressings seem to be more consistent these days. Phil Hobbs of Linn Records said recently that plants are getting better at using the correct temperatures.
I totally agree about turntable upgrades taking vinyl to a whole new level. That's one of the reasons I got back into vinyl last year with a much upgraded version of the same model that I had before (bearing, power supply and phono stage). I am getting more out of it now. It has become my main source again.

