That's my problem. I used to be in HO. Nowadays, I consider that impractically big. I don't know how much space I'll have in the future, but my goals are large, and my dreams so grandiose that they would be impossible in HO or any larger scale. The problem is, I love odd locomotives. I'm entirely dissatisfied with steam availability in N, but fortunately my interests lie in the diesel era. However, try finding, say, a plastic GP60B in N. And don't get me started on electrics...I miss HO dearly, due to the availability of oddball locomotives. By oddball I mean anything from DD35's, DD40's, DDM45's (brazilian narrow guage), Little Joe electrics, Centipedes, Critters!, Speeders!, and all kinds of other gigantic or tiny diesels. For steam HO even has (or had) 2-8-8-8-2 Triplex engines, GTELs that are realistic.