And if Amtrak upper management really wanted to get rid of some LD trains, they could direct the rate department to set fares at high bucket, and then if no one bought up the tickets, management could use that result to justify train-off petitions.
So the real proof of the pudding is to look at the ridership statistics. Have the number of passengers on the SWC declined substantially since the agressive revenue management operation was rolled out? If the answer to this question is "No", then the Amtrak managers may well be correct to continue this procedure.
Such takes care of the short-term bottom line... but potentially adversely affects longer term ridership, ie, the never taken an Amtrak LD, with low bucket prices lower or more readily available, might be more willing to test the waters, but if they're faced with higher prices, then testing the waters becomes more difficult and as such potentially precludes a "possible" from becoming a 'believer." Again, as a company owner, we're always worrying about making this quarter fat, at the expense of multiple quarters down the road... and luckily being privately owned, can and do plan and execute for the long term, assuming that the short term in 90 days will be history and forgotten.