Prince, The Black Album
Prince recorded The Black Album, sometimes called “The Funk Bible”. They already pressed 500k copies when he asked for a recall. He said he had an epiphany that it was “evil.” Promo copies were already in circulation, so it was too late. In 1994, he changed his mind and released it as a CD. In 2018, a mint American vinyl version was sold at $42,300. A Canadian pressing, meanwhile, went for $27,500.
Aphex Twin aka Caustic Window, Caustic Window
Bass producer and techno-drummer Richard D. James also went by the name Aphex Twin. However, he recorded this album under “Caustic Window” instead. He made five copies and abandoned them. It got out somehow and went up for sale on Discogs for $13.5k. James, Rephlex Records, and Doctors Without Borders started a Kickstarter campaign for a digital copy. They made $47,000 and split it among them.