I suppose it does help make for a much nicer presentation. You know, for the odd retirement gift, birthday present, or the man who has everything (I believe today these guys are better known as "Hoarders").
They are really very lovely pieces of art. The designer, Guenter Scholz, has a whole lot of talent. For a better set of examples, see H & K Steel Sculpture's inventory HERE.
Photo source: DetailsArt.com