Twice in the last week I have read threads that mention sold out long distance trains being the norm in the summer time. I am only an occasional rider so have not seen alot of this, but assuming this is the case for perhads 4 to maybe 5 or 6 months of the year (summer plus holidays), at what point would it make financial sense to purchase more cars for the superliner fleet. I understand that adding new routes, will require more cars that likely congress would need to come up with money to fund, but shouldn't sold out trains adding cars be a financial advantage to covering costs on these routes? My limited business experience says that even private financing or leasing should make sense here, or is Amtrak limited to funding only from federal or state governments? Is the need to place a large order the sticking point? Can anyone shed light on this?