#1: When I turned 16 I was looking for a car. The folks across the street had a '63 split window Vette, completely torn apart in their barn. The old man said he'd sell it to me for $600. I needed something that I could actually drive to school and work, I passed up the deal (circa 1976).
#2: Back in 1977 a friend wrecked his Torino and needed another car. I told him about a '67 Mustang fastback sitting at a neighbor of my grandfathers. He bought the car that afternoon. It was a low mile big block 4 speed car, running condition, low miles, no rust. He bought the car for $800 and drove it for the next 10 years.
#3: About 10 years ago my boss was restoring a '67 Camaro and needed a tach - speedo cluster. I happened to have one and gave it to him. Shortly thereafter he ended up not finishing the car, and sold the big block tach-speedo cluster on ebay for $350 dollars.