What was the best vintage LP you have ever found and why was it so?


I am a prolific vinyl collector.  I think that I have almost every album that I ever purchased but I often wondered what happened to an album I used to play a lot in grade school.. 
Some of mt records are collectible.  However, one of my very best memories (not just LP related!)
was when a friend visited me from out of town.  It was snowing and most shops downtown had closed.
We found a thrift store and as I thumbed through a box of albums they had sitting on the floor, I spied
a treasure from my childhood.  It was an old Christmas album that I played over and over in 6th grade.  
When I saw the album cover I couldn't believe it.  I had forgotten the name of the record, but I instantly recognized the cover.  It was in excellent condition and I think I paid something like fifty cents for it.  I play it a lot at Christmas, and even pull it out and play it a few times during the year.  Music therapy!
jccampbellii
RCA LSC-2436 - Respighi:  Pines of Rome/Fountains of Rome - Chicago Symphony cond. by Solti.  I have a 1s/1s copy, which is exceedingly rare - Canfield's 2000 edition cites NM value at $750.00.

I paid $10.00 for my copy which I found several years ago at a used record store.  It isn't NM (marred by a scratch on Side 1 that's audible for 2 or 3 minutes), but - aside from the scratch - it plays beautifully.
10 years old walking down the alley north side of Chicago. Some old timer must have kicked and building landlord through their stuff In the alley. Found huge stack of 78s from years gone by. "Praise the Lord and Pass the Ammunition", "Bocha-Me-Bocha-You" (Rosemary Cloony - 1952). Must have been 30 of them. Long lost but fun at the time.
Santana “Lotus” Japanese pressing. The most elaborate folding and art ever done on any album. The Japanese must really love Santana. It’s a true masterpiece of Love and “Live recordings” I cannot find an American pressing that is as complex in the fold outs. It’s very beautiful 🙏🏻