I bet I had more fun with my c.1950 AF 290 passenger set with smoke, choo-choo and air-chime whistle than the majority of rivet counters on this group have ever had.
You wanna play trains then go and actually risk a finger or a hand, eh, otherwise shut up about "realism." The train races my buddy and me did with his Lionels and my AFs were extremely joyful, but not very realistic. No "underbody details" and the trains would occasionally careen off of the tracks. So what.
If you wannabe a historian that's okay with me, mainly because it serves a genuinely useful and valuable function. But don't tell me that "reproducing realistic railroad operations" on your toy train setup, no matter how gigantical or "realistic" it is, is anything more or less than being a real railroader without the risk. Not that there's anything wrong with that, but...
Tejas Pedro