Okay, the price of the lighter is something I have an issue with. Just earlier in the chapter Reiko shows that a magic crystal only slightly bigger than the fire magic crystals that were used in the lighters were selling for "1,000 Torr." Meanwhile these lighters are completed magical devices with magic stones that, albeit are smaller, are still finished magical tools with magic stones in them. How the fuck could they only be worth 50 Torr?