The two happiest days in the life of an airplane (or boat) owner are the day of the purchase and the day of the sale. My final flight in the 210 was to its new owner in Waukegan, Illinois.
My plane needed $5,000 of maintenance immediately. The frequency of cylinder and instrument breakdowns had drastically increased. In fact the pre-purchase inspection revealed another (my sixth) cracked cylinder. The 210 had become unreliable. Also due to circumstances at work, I had much less free time to fly. The decision to sell the 210 was still painful. I was happy to be free of the financial burden, but its speed, capability and availability (when it was not broken) has been greatly missed.