I don't think it can be backed up by hard facts, but I get rolo's logic in this case. Ever since its introduction onto the setlists in 2000, Just Older switched from a regular to a semi-regular, depending on the tour and on the subsequent leg. After the Lost Highway tour, when the title track got moved from the opening slot into the "beloved" LH/WLOL combo (2009), Just Older immediately vanished into the rarity status and fell into oblivion after that tour.