Comment by TylerE

The nice ones are almost all old business cars. The business car was used by the railroads for senior executives to move around their systems, and hold meetings.. usually contain a couple of executive bedrooms, a staff bedroom (they typically carried a cook and a steward, although the roles were sometimes combined). The rear half or so of the car is an open plan lounge/meeting room.

The cars were usually built by a company like Pullman, usually from a time frame of roughly 1900 +/- 20 years.

Huge money pits, with tons of (often quite ornate) wood m, etc. then add the cost of restoration (again almost all of these cars are 100+ years old), retrofitting modern electrical systems, air conditioning. Could easily be a million dollar project.