Fifteen years ago I thought HO scale was a no-brainer; why would anyone choose anything else? But recently I've seen the beauty in O scale. You don't have to have countless scale miles of track and endless yards full of cars to have a great layout. O scale is so pretty to look at - even a single hopper car has so much more appeal in O scale than HO. But ... these people have the huge layout and the detail. I'm so jealous!