Granted, there are different thicknesses of polycarbonate. Thermo-formed molds are going to be thinner, cheaper, and more flexible than injection molds because it's a different process.
Are you planning on just a few bonbons for holiday gifts or ? Sometimes there's a discount on multiple molds at chocolat-chocolat or JB Prince, and if you are in the US the exchange rate with our friendly Canadian neighbors is currently in our favor. Chocolat-chocolat and Design & Realisation are both Canadian. I recently got 8 large hemisphere molds and a bunch of cacao butter, $401 Canadian was $306 US. 🍁❤️