I know that I’m really the only person who can answer this question, and actually I’m not really looking for any answers, more…. maybe some comments. My wife and I may start looking for a bigger house sometime next year, and of course one of my requirements for a new house is a ‘choo choo’ room, as my wife calls it, preferably a minimum 12 x 20’ room, today I have a 12 x 15, but would like it a bit longer. Now, with the prospect of having to start a layout from scratch again (yuipiii I like that), it got me thinking of what I like about N scale and what I could get from changing to HO instead. I know this subject has been discussed countless number of times, but here goes again. Reason for choosing N Mainline running with long modern trains. Big yard(s). True sized big warehouse / factory buildings. Reason for choosing HO Would like to build some fine-scale buildings. Love steam and the details I have seen on some HO steams. Sound in a steam is a really cool feature. Better details in general. Availability of kits is not really that big of an issue. So the obvious conclusion would be, N if I choose modern and HO if I choose steam. Now should I choose one or the other? See that’s what I can’t decide. So maybe I should do both, a lower level HO steam area layout, and an upper level N scale modern layout, that should keep me busy for the next 20 years or so . Has anyone ever done dual scale in the same layout room? Well, nothing has been decided yet regarding the house, but I guess it’s never too early to start thinking/dreaming about what you can do.