Can anyone tell me the differences between tinplate and hirail? I still have the Lionel O27 set that I got as a young child, 47 years ago. My feeling is that )27 with its tubular track would be considered 'tinplate.' Hi-rail on the other hand, has more prototypical track, with more ties, and may even be scale, however still has 3 rails.
I remember as a kid looking at the subway tracks for the 3rd rail in the middle of the other 2, like my Lionel track. That may have been the start of my 'disease.'