In the 1990’s I purchased a Classe Audio DR-3VHC pure class A power amplifier from a seller in the original Audiomart magazine (published by the late Walt Bender). About a year later I decided to sell the amplifier and listed it in Audiomart.
Who contacts me to buy it? The original seller! So I sell it back to him. About a year later I see the amp tor sale again and buy it back. Alas, in spite of the DR-3 VHC being a great sounding amplifier, it ran very hot (given its pure class A bias), so I rarely used it. I sold it for the final time a few months later.