I think my original opinion was off base as I have seen many listings since of these trailers being scrapped in bulk nation wide. Safety recall. I remember another thread id the problem with the style of frame? Can't recall the details but there is a thread here on it.
Here in La, They have been collected at several bases and there is a scrap sale close to me here in New Orleans that I have never seen on GL/Gp listings ever at a National Guard Armory.
But on the flip side, There has been many scrap sales at Pineville of other ify GL/GP contract stuff...5 tons, deuces, cucv, trailers,forklifts......