I can't think of any circumstance where this happens except in warehouses, out of the view of the public.
Check it:
http://manuelhp42.blogspot.com/2007/02/1-million-of-macbook-pros-in-one-room.html
Check it:
http://manuelhp42.blogspot.com/2007/02/1-million-of-macbook-pros-in-one-room.html