I might look at this a bit differently

I've lived my life the way I have wanted to, bought and sold what I wanted and got into (or out of) any hobby or pastime I wanted to partake in.
We brought our children up to do the same thing, live their life and enjoy their life as they want to. They have very little interest in steam toys beyond asking me questions and admiring what I have been up to with them, but that's out of their love for me. If I was to fall of the twig all of sudden, I don't want them to feel that they have to be burdened as life long care takers of old steam engines and maybe they'll keep one or two as mementos (or maybe not) and sell them all and spend the money on a hobby that they like and enjoy.
Same as our house that's filled with expensive century old furniture, antiques and curios that my very well to do grandparents bought in the 1920's and went from my parents to myself. Stunningly beautiful and it all goes well with our home, but my children have built beautiful modern homes and they have furnished them with modern contemporary furnishings, our family heirloom furniture will not go in their homes or suit their modern decor and they probably don't want to be burdened with the duty of having to apply furniture oil and polish regularly.
Our hobby to most people is pleasantly eccentric, nice to have a casual glance in and admire, but not for them.
Just think.....if you're old eccentric uncle has collected typewriters from all of the world at great expense and had an expansive and very costly collection and had amassed 300+ of them, if he left them to you and you weren't into typewriters, would you seriously want 300+ typewriters?