Hi, David. I am 68 as well, but still have a year or 2 left to work. I live in the Atlanta area. I am going to try and get a new Player Strat this week. Probably why I am still working ;)
I play in a community band (percussion) and a lot of our members are in their 70s and some in their 80s. Until recently we had a Director Emeritus that was in his 90s. I think that music helps keep us mentally alert, physically able and helps with a good attitude.
Kudos for doing music, it is what makes life worth living.
Peace,
Myst