That is especially able to use in off season times. At the Thanksgiving -thru New Years the equipment can fill out for that time's demand! Amtrak can use that equipment for expanding the safety patrol runs that are only going from West Palm to WASH. There were many school charters as well that could be repeated.I hope they retire them from scheduled service but keep them for charters and specials to state fairs, sports events, and conventions.
However there is the big problem that Amtrak does not have enough yard space to store the idle cars if none of the above is done. The one exception is BEECH where many yard tracks could be constructed.