I am very very envious of your Medium Format model railway.
Heh, heh, the bigger the better, none of this tinky N gauge or HO gauge stuff ! Everyone knows that the bigger the chimney, the faster it goes !
But I still have a large quantity of my late 1950s / early 1960s Micro Four Thirds Märklin HO.
Some of that stuff is rare enough now to attract some good resale prices, but it's hard to find the right people to sell to at times.
I used to have a large mess of British and European N gauge gear but nothing was happening with it (work and kids take some time) so sold all that to a shop and used the proceeds to buy a largish metal working lathe for the home workshop, didn't really need it but sure has been handy at times making or repairing the odd thing.
A few years back I did get interested again in model trains and the garden railway idea was born, but this time in a larger gauge 1 track so it can be outside and strong enough to be walked on.
When you look at prices of locos and rolling stock, I find that dollar for dollar I get a lot more with the garden scale stuff. Some of, say, those beautiful little N gauge locos cost as much as I pay for a chunky thing I can have difficulty lifting, plus I can see the detail when the thing is chuffing past at some distance.
Once retired and kids gone I seem to have less free time, I tell people I only work 8 days a week now instead of 5. But I can adjust what I do when, so rebuilding the back yard, excavating under the house for filling to raise the railway to non bend down to ground height, and eventually making a running railway empire outside will remove an expanse of lawn that I was wasting too much time and effort mowing and weeding. That should give me something that I can sit back and watch the trains go 'round while I sip my medication.
The photography hook to all this is that I enjoy getting low and dirty and shooting train models to look a bit more like the real thing, so far at visits to other places on club outings but soon on my own rails.
Plus whenever I travel I seem to be photographing real railway bits and pieces before they all go - such as a long abandoned wooden bridge/trestle near my daughter's place some 100 miles away. Been driving past it at odd times for 10 years and one day had the impulse to take some photos, next time past, the darn thing had disappeared. Now a blank space where something had stood since 1893.
It is really a case of photograph everything NOW and not leave it to next time, as often there's no next time.
Here's a Panasonic LX3 shot taken in Sep 2012, by June 2013 it was gone from what I can find.
I wonder why they abandoned it? At Bomaderry NSW Australia.
Regards..... Guy
