After you more or less finish your model railroad, what is there to do. In my case, I built 6 more model railroads in the same house.
I will share with you how and why I did this. Obviously what I learned on the Addison was used to advantage on the next 6 layouts. They are two in On30, one in O 2 rail standard gauge, one in Sn3, one in HOn3 and finally an HO switching Layout.