Well, Joel makes a good point about backing. Conductor has to stand in the Rail Fan's vestibule (back of the train) and call the back up. Of course, if they rode on TRE's rails, that could all go away!
Amtrak has to do something about baggage. Bags are thrown into a dirty bin and tossed about without regard to their contents, sliding all over the floor getting scuffed and dirty. And, as in the photos above, sometime with the door left open, it's amazing more baggage doesn't get thrown to the forest.