I think that one of the original ideas behind using ivory may have been to use as much natural material as possible in a cue- I think that has changed over the years for various reasons. Some of the ideas behind using ivory in cues also had to do with perceived or actual playability characteristics regarding ivory ferrules and joint materials - folks will develop their own thoughts on this one based on their experience with ivory in cues. A third reason was probably aesthetics - ivory was traditionally also used in some knife and gun handles as well as in jewelry and music instruments.
Much of this has all changed now- ecological reasons and animal preservation - to the point that ivory usage/transportation/possession presents possible severe legal ramifications - so it now becomes a usage factor that brings with it risks in several ways.
All that being said, I love my cues with ivory and if anyone out there feels REAL guilty owning ivory cues- I'll make you a REAL guilty offer on them
