I know what I am going to do. I am going to keep buying, selling, running, and enjoying model trains for as long as I can. I already have a large collection from nearly every manufacturer that will keep me interested and busy for many years to come.
The best part of the hobby for me are the friendships that I have made over the years. I am in my mid 70s and will need to downsize sooner than later.
This does not mean that I will leave the hobby. I plan to participate in forums and to keep a few pieces that I can run at a club or on a friend's layout. I don't see any reason to fully exit the hobby unless I can no longer mentally or physically participate.
I have already converted all my MTH PS-1 engines to TMCC using ERR boards. I will continue to do so if MTH boards fail in the future. I am not sure what to do if one of my MTH engines has a motor or gear failure. I will cross that bridge when I get to it.
NH Joe