Haven't played my LP's in 20 years - still good?

Definitely don't believe any of the answers you have gotten so far. Your LP's are now trash. They will sound like poopy if you try to play them again after all these years. In fact, they might even qualify as toxic waste, so you can't just deposit them in your garbage can. You could get a big fine for that.

Just send them to me and I will gladly dispose of them for you :-)

Enjoy,
Bob

Some of my vinyl dates back to the 60's and they are still fine. The big threat seems to be damp and mould, which can be tough to deal with, typically if the records have been kept in a cellar(sorry basement) for years. Help is at hand, Michael Fremmer has a couple of recent articles on this very subject, the second in the current Stereophile. These includes advise on intensive care for really damaged Lp's. Some of my older 2nd hand buys have been very scratched, presumably by old worn cartridges, tracking at the higher weights typical of vintage cheap decks

Ptmconsulting is quite incorrect. They are not all trash, only some of them. Send to me and I will separate those worth saving and give you $1 each for the records that should be discarded. I'll split shipping with you as an added incentive. Let me know.

You rascals trying to snooker me outta my collection. - Ever try to get an old hippy to part with his records?
A fools errand, not a chance, too many checkered memories tied up in them. They're postcards from my misspent youth.

Misspent youth??????????

Hardly misspent my friend.

Happy New Year!