Best deal you’ve ever made on old cars

I bought my current '69 Dart from an eBay ad about 10-12 years ago. I don't remember the $$$ number, but thought I was getting a pretty good deal.
When it rolled off the transporter and I had a chance to check it out I found, in addition to it being complete with all trim and a full interior, it also came with:
* a brand new never-fired 380-horse 360 crate motor (swapped the single-plane M1 intake for a brand new Edelbrock RPM airgap intake)
* brand new 770-cfm Holley Street Avenger (will be up for sale soon)
* unknown brand used headers (since sold)
* freshly rebuilt 727 (since sold)
* already replaced later-model BBP front disc brakes
* already swapped-in B-body 8.75 rear end with a 489 pig and Sure-Grip
* brand new in-the-box Auto Meter guages the previous owner had purchased for a planned-for Rocky Mountain Dash (will be up for sale soon)
* brand new in-the-box B&M MegaShifter (will be up for sale soon)
* brand new carpet
* complete bench seat interior (bench seat sold and shipped to Australia)
* brand new 3-inch dia. exhaust and mufflers

When I figured up the (10 years ago) purchase price of everything that came with the car, I got the car itself for free.