locationPosition v. position and attached objects

[Trexian]

The wiki has 2 different ways to determine the position array of a cfg-described location.

position (used to determine the position of a location):
http://community.bistudio.com/wiki/position_location

Returns a location's position. If it is attached to an object, the location's set or created position is returned rather than object's position.

locationPosition (used to determine the position of a location):
http://community.bistudio.com/wiki/locationPosition

Returns the position of a location. If the location is attached to an object, that object's position is returned.

Ok, I see that there's a difference in what is returned, based on whether an object is attached.  Makes much sense.

But begs the question(s) - how and why would you "attach" an object to a location?