I have been collecting engines, rolling stock, and other items related to the railroad I am modeling for over 20 years. Now I have started a model railroad, but I am finding I have rolling stock from the 1940s to the 1980s. I really like all of the items I have and I don't really want to sell any of the items yet. However, I am looking for input from others who also have a time era that spans over 40 years. Are there others out there who are having this modeling problems and if so what are you doing? I am feeling since it is my railroad I can do what I want within reason. I have tried running trains with equipment that would be prototypical to the motive power that is pulling the train. This has made for some interesting running sessions.