I need more space
Sometime in the first half of the 80s one of my local toy shops had a sale on Lego and I found to my astonishment a 1969 model Ranger locomotive at cut-price. Not that I knew exactly that at the time, I only knew that I wanted one but they hadn't been in shops as long as I could remember. I'm pretty sure I even have the box back in mom's house. Looking at the model ads supplied in the box made me realize that train tech actually was worse in the 70s-80s then end of 60s.
I think I have seen it valued at $400. If I had more space I'd bring along my Lego stuff and build some train tracks and environment.