Greg, I think this is known as major thread drift. Possibly or even probably caused by me......SorryThis connects to Colorado Model Structures how? It went from UK vs. European? I think you were reading a different thread! This has only been on the Colorado Model Structures, as the topic title says.
We are still trying to find out what is going on, so can you move your off topic post to a different thread?
Paul - I have no research data on your question, but my guess is that there are very few G scale hobbyists here in the USA that focus on Euro (including British) railroads. For example, when I first started into large scale, primarily LGB, as a hobby over 30 years ago, I bought one of the LGB Euro starter sets. I also then later bought several of the LGB German and American style locomotives. But about five years later when I was refining my small indoor layout, I decided I wanted to restructure my layout and trains to just American type railroads. Don't get me wrong, I love some of the Euro locomotives, and in 2018 bought two LGB/Marklin locos for my collection: The LGB's RhB Railway 50th LGB Anniversary Electric loco; and RhB's Heidi Steamer. I also bought a set of RhB passenger cars that can be used with either loco. But when attending the annual East Coast Large Scale Train Show, you see very few Euro locomotives for sale. And if you search on YouTube videos for LGB Trains, most of the videos are American style locomotives. Same goes for the large scale garden RR club I belong to, few Euro locos operating. So, my conclusions are only based on my observations, not any data collection. The original LGB company, Ernst Paul Lehmann Patentwerk Germany, starting make large G scale locomotives in 1968. But they didn't start making any American style locomotives until 16 years later with the production of the LGB 2018D Mogul in 1984. They obviously saw a profitable market potential in America and then went gang-busters with many other American style locomotives which they then seemed to focus on producing rather than new models of Euro locos until their 2006 bankruptcy. Conversely, since 2007 when Marklin bought the LGB production rights, they seem to have focused more on producing Euro locomotives.Out of interest, over here we have an awful lot of modellers into American themed railways, and obviously mainland European, do many people America model British or European outline?