If age mellows people, the same might be said for airplanes, at least if the airplane in question is Mooney’s M20K series. The airplane arrived in the GA market at a time when turbocharging was relatively new and the demand for high-flying aircraft was thin.
Mooney didn’t get the M20K’s turbocharging system right on the first try and the airplane developed a reputation as a maintenance hog. Thirty years later, that reputation has been mostly burnished and the fact that the M20K bores along between 160 and 200 knots on relatively little fuel has improved the model’s used price.