Some banks of machines were turned off a week or two before the close. Those shown in these photos are just some of those which were turned off and yet left in place; (I suppose to be auctioned off).
This area was near the middle doors, (the doors which were closest to the actual sidewalk of Las Vegas Boulevard). You can see a "mystery elevator" indicated in one of the photos. By the position in the building the elevator could only go down, indicating that it was an employee service elevator. Yet I have never seen the elevator in operation.
If anyone knows anything about this elevator, or has seen it used, please share the information.