I think you mean a "plackart". The reserved seat is still widely used in our country, but we do not have trains that have a reserved seat but no compartment — there is always the option to choose a compartment, but recently some trains do not have a reserved seat. A plackart is 1.5 - 2 times cheaper than a coupe, and I think that a reserved seat is still not such a bad option for transportation. But there are seats on two trains that leave the departure city at 22 PM and arrive at the final destination at 6 AM.