It depends on the person who is reaching retirement age. I don't think 55 is that close. Some retire later. But I guess it depends on one's finances and things that make you want to wake up every morning.
Dr. Warren Bland, I don't know if he ever mentioned that in Southern California there are more bike shops than anywhere else in the U.S. But I did notice he mentioned San Luis Obisbo. While its not exactly Southern California, its close enough but yet far enough to be a great place. Lots of riding there.