Not uncommon. They gave away billions of it to Iraq, and were not too concerned about what was left. Getting stuff to a war zone is always more important than bringing is home and always has been. You can see photos of equipment, including planes and helicopter pushed overboard rather than brought home going back at least as far a Vietnam. Nothing quite like 18 hour days on a wash rack, making a timetable for exit, to bring home equipment taken overseas, just for an exercise, never fired, but having to be cleaned of every speck of foreign soil from every nook and cranny, just to clear customs and USDA, and that is for less than a battalion of armor, mostly command and control vehicles. Somebody way above my pay grade at retirement made those decisions and they make them the same way every time and mostly a matter of expense and availability of transport. One of the largest tank graveyards in the world is located in Kuwait after Desert Storm, and remember, hardly any of our tanks were taken out in combat.