My best was the one I wrote about In Manifesto a few years ago (and it also featured in the book "Too darn soulful").
Basically some guy was trying to sell 500 records in a box to a store, and they didn't want them. Eventually did a deal with him on the street, and the 500 included Ty Karim (Caramel), Virginia Blakely and Betty Willis on MoJo, Sandi Shelton, Johnny Robinson on O'Keh, Prince Phillip Mitchell, and some others as well. Paid $150 ish for the 500.....Reeeeeesult!