Do things boil down mostly to supply of rolling stock? When I look at avails of sleepers on the Eagle, Crescent, Sunset, the inventory is invariably low to nonexistent. On my trips over the past few years, the coaches were usually <50% occupied on a long haul basis, while the sleepers were full.
Of course, a big problem is sleepers being filled in the middle of the trip, but of course unavail for end to end. How about a way to know about the "holes" and a way to book them? I've done that on a couple of trips - sit in the club car or coach for a part of the journey.
It would seem to me that El Paso through Dallas to Atlanta or Meridian would really attract ridership.
That's if rolling stock could be found. A reasonable connection to the Sunset in ElPaso, to the Eagle in FTW, and to the Crescent would really be a boon.