Gottlieb Atlantis and a Gold Strike 5 years ago. The Atlantis was listed for 550 on CL in excellent condition with slight minor p/f planking. A few measly snow flakes kept me from driving the 15 miles to go grab it. It was gone that day.
The GS was an even bigger mistake. Absolutely mint example of the game for 1100 and I saw it and had first crack at it yet still declined. Again gone next day. Doh!........