Very interesting...just as this topic comes up, here is his response to the retirement question...
Do you think you will ever really retire? And if so, what will you do then? —David Harty in East Norriton, Penn.
There is the answer to your question. What would I do? As long as this is fun and I am healthy, it's an amazing run. I go out for a show and I have to pinch myself. Longevity is not something you get into songwriting for. We are four decades into this and still going strong and I am just eternally grateful, so leaving it would be very hard for me. It is kind of like Joseph Campbell used to say: if you have found your bliss, it is like a great old car. You don't want a new car, you just want to paint the bumper, change the seat cover: you just want to treat it well, not get a new car. That is how I feel about performing. Retiring is not an option for me, because what else would I do? I have plenty of time to go do the things I want to do now, but there is still something very unique about getting on the stage, that very few people get to do. And I am not quite ready to not do it.
As it turns out, that was my question he answered.

I can sleep well tonight!