What’s the best deal you’ve gotten on cars or parts

Part: I took a Galaxie 500 center console for a trade on 2 SBP rallye wheels that I wasn't using thinking I would use it in my Dart someday.. years and years went by I never did.. I sold that thing at a swap meet for way more than those two wheels will ever be worth.
Car: 1970 Dart /6 AT for $500, I drove that car for 5 years and sold it for more than I paid for it.