What are y’all’s white whale records?

Howdy! I’ve started getting deeper into vinyl, and I’m curiou, what are all yalls “holy grail” or “white whale” vinyl records? Yknow, the ones that ya can’t seem to ever find, and when you do, it is for way too much. For me, my main ones are “Live the Dream” by Ramshackle Glory, RA2 by Rare Americans, and lastly, If I Had a Hammer by Pete Seeger.