That was a slip, I meant general train and ferry travel. Not long distance travel such as city pairs. The dwindling was in reference to what is offered on such trips and accommodation, not that the service numbers themselves are dwindling. I traveled in Europe many years back, when they still had compartmented carriages and service staff, now that only applies to 1st class, which is a poor reflection of what 1st class used to be on trains. 1st class back not long ago was your own cabin, now its just a bigger seat, there are still sleepers though. Travel on local routes is vastly different to the high speed intercity routes also. Used to be commuter trains had the option of 1st to 3rd class seating. Deutsche Bahn operations are a bit hard to compare, as they are primarily government owned, we are not talking private companies here competing with each other.
Also important to note Amtrak is subsidised to the tune of $1.5billion USD, because no private company could provide sustainable intercity rail travel.