Sounds like you're not only been a good curator but somewhat lucky as well. I only have something like 3000+ LPs and singles in all and some of the pressings - mostly from the Seventies - are pretty lousy TBH. And that's from someone who isn't too fussy about perfect sound forever. Not to say I can't enjoy them nevertheless - I didn't buy any of them for sound quality - but in some cases CD beats the LP hands down. Generally I have no preference though.