Most valuable LP

I bought a bunch of RCA Living Stereo shaded dogs and Mercury Living Presence LPs in the late 80s, about 150 LPs, from an antique book collector for $450 and sold them to a guy visiting the DC area from Tennessee two weeks later for $4000.

Bought This for .49 cents at a local thrift shop.  I live in a city with one of the top music schools in the US so I suspect this came from a prof's collection.  I have priced it from $100 to $299 on the web.  lol
in mint condition, very sight wear on cover

A Mercury Living Presence Janos Starker Dorati Dvorak Cello Concerto Bruch LP Mercury SR90303 RFR-3 Stereo ED1

I have a sealed MFSL of Billie Holiday I bought around 30 years ago, no idea what thats worth. Might not be worth crap. I have a box set of Rolling Stones albums I bought in the 70’s, black box with name in sparkly glitter,came with a black glitter tee shirt. Taped it to cassette and havent touched it since.

MFSL Beatles box set; purchased new and mostly unplayed.  Number 4300 something from the first pressing.  

Tom Petty Wildflowers - I remember going into this record shop a bunch of times and being too cheap to pony up the $40 or whatever they were asking for it at the time.  Finally grabbed it months later still one of my all time favourite albums and the sound quality is outstanding on this one as well.