Does CopyEntity create additional geometry?

I'm trying to figure out if I'm doing the right thing for my 3D puzzle game at the moment.

I start off by loading all the different objects and using 'Hideentity' on them as soon as they load, so they're not visible. Then I have an array of entities that I use CopyEntity to depending upon the classification of the tile.

For example:

For x = 0 To 10
	For y = 0 To 10
		Select level(x,y)\tileinfo
			Case 0
			mytile(x,y) = CopyEntity(globe)
			Case 1
			mytile(x,y) = CopyEntity(figure)
			Case 2
			mytile(x,y) = CopyEntity(statue)
		End Select
	Next
Next

My question is whether or not my CopyEntity is creating a lot of extra geometry, or is it an instance of the same data? Am I taking the right approach to this?