On the not-so-many trains I have been on, the luggage racks in the passenger cars were often close to full and sometimes there was already no space on the bottom shelf where I have to put my luggage due to my height and strength, so I can't see how checked baggage/baggage car could be eliminated. I do wish that checked baggage was available at all stations for sake of consistency if nothing else. For the unstaffed stations, couldn't someone on the train check baggage and put it in/take it out of the baggage car?