Amtrak designed and built the prototype Viewliner cars in its own shops.I seem to recall that the Viewliner was designed by the Budd Company but production was awarded to Amerail on their low ball bid. Amerail went under and I believe Alstrom , a french manufacturer is now the successor. From what I read Amtraks immediate need is to add 50 new Viewliner diners. The Viewliner trains will continue as Superliners cannot run on the NE corridor through NYC or Baltimore due to overhead clearance issues at the stations, tunnels and bridges. Therefore the LSL will always be a Viewliner train and because it originates in NYC , it will always be Expensive. The LSL is the home of Amtraks $800 bedrooms and high bucket $400 roomettes. I can't believe that people pay those prices. IMO you'd have to be an "azzhole" to fork over that kind of money but apparently people do it.
They then put the production contract out for bid.
And I can't imagine why they need 50 diners. They only have 50 sleepers and each train has typically 2 or 3 sleepers and 1 diner, the exception being the Card.
As for the prices, if Amtrak gets the new Dorm/Bag cars, that will help to lower the LSL prices as there will now be 7 to 9 roomettes that are currently blocked out for crew that will be able to be sold to paying customers.