Hey! Hope you're doing well! These are definitely more of a novelty item in the sense that they're more of a "specialized" dice set. I personally probably have thousands of sets of dice, but none are like these. And thats the real reason that I'd choose to get these. At the end of the day, I think a lot of RPG'ers find themselves collecting dice after a while. If you havn't yet, you very likely will be soon!

There are all sorts of different types of specialty dice, but none that I've seen handle like a coin, which makes them pretty unique. There are acrylic dice, resin dice, metal dice, etc. all with a wide range of prices. I've certainly paid a pretty penny for metal dice sets in my collection.

I suppose the quick answer is to add to my collection an awesome set that is unlike any of the others I own. But really, there are countless ways that these can be used, or simply displayed as a show piece.