I had the same exact problem when starting Summon The JSON project. The best comment I read was it is the most niche project he ever heard of. And in reality it is a rather small market for it. Moreover, the price has to be higher than what normally card games cost. Because when you don't order millions of decks, it is more expensive to manufacture, and moreover basic costs are also split into a smaller number of orders. It makes very hard for any innovation to go to the market. It really depends on if you will find a way to manufacture it in small quantity (what increases the cost) and if you will have market for it. Fortunately I have found an ambitious manufacturer that prints on demand. But it is a card deck. Hopefully there will be more manufacturers of electronic part willing to support startups with small order numbers. It blocks the market we don't have them enought