Estate planning is something we often forget. My wife looks at my collection of big live steamers and says they are all going in the trash when I die. I have persuaded her to ask my friend to help her sell them.
But it is very difficult for a widow or family to dispose of the Dad's collection. EM Gauge Society had an "Estate Assistance" group of volunteers [when I was a member, 40 years ago,] who would advise and assist someone trying to dispose of a collection.
The 16mm Society have this as part of their package..
It is certainly worth thinking about what will happen to your railway empire when you have gone.
It may well be other family members do not know the value of your collection.
Another item to consider is an 'electronic will'..
All the details of the myriad online accounts we have these days..
How would loved ones be able to deal with subscriptions to magazines, societies, email and website accounts?
What should happen to Facebook sites, online photo collections, blogs, YouTube videos, et al??