Model railroads.

E-Bay. Hobby shops are few and far between here in Canada. I bought quite a bit of rolling stock about 10 to 15 years ago for my future layout and it was as small hobby stores were closing down here in the Lower Mainland of B.C. I got quite a few deals on Proto 2000 locos as they were clearing out stock ($40). I wound up buying probably half my collection on e-bay though.

The fact you’ve narrowed down the era you want to model will keep you focussed as you acquire the rolling stock.