Looking at my local club – yes it is slowly dying, I think. Certainly member numbers are down, and active model builders has decreased,
However, if I drive 2 hours to another club (Canada – distances like this is close) – the Montreal Live Steamers – is absolutely thriving.
Some of the members are about my parents' age, but the majority that I see out there are young – no grey hair – and ACTIVE. Lots of construction, facility building, track work, locomotive building (from 3-1/2 to 7-1/4). It's incredible to see what they do.
How do they do it? In my opinion,They provide an inclusive atmosphere, and go out of their way to be personable and approachable. No issues with what you are building or buying, any scale, help and guidance is there.
I'm not sure how to bring that attitude to my local club; I've tried, but I think a combination of lack of time, other hobbies, working full time, and (most important) a really outgoing, engaging personality is required. 😐