What I really found interesting in this article was that the coin collectors market is estimated to be worth around $17 Billion in annual revenue. https://www.numismaticnews.net/world-coins/holograms-on-coins-and-beyond
I have two 2005 &2006. Canadian holograms coins. A tall ship and a Ketch both are very well done. Now exactly what one would think be apart of a collection like mine.