The problem is there is good old vinyl was good. Especially in the sixties. The late seventies had light flimsy discs that often warped and ruined the songs especially the first few outer tracks.
Re: 70’s crappy vinyl. I think that the 1973 oil shortage spurred the degrading of the vinyl used for records. 45s from the 60s are practically indestructible - although they were so hard they sometimes cracked.
When they went to a cheaper formula, not only did they warp, but the grooves turned into garbage after a few plays. Radio stations had a heck of a time trying to keep up with cue-burned records. Something with a quiet beginning, after being cue-ed up on a turntable a couple of times, had a terrible scratchy sound. Certain companies (Columbia, I’m looking at you) were particularly poor quality.
Sounds like we were in the same era. I recall the good vinyl...then came the Columbia Record Club, twelve records for a dollar and the much lower quality presses.