That's hella expensive if you ask me. Cost for the tamper evident bags and backup cards is no more than 2β¬ in production.
I feel similarly about other products: Just buy the punch letters on amazon for 30β¬ and the washers for like 10β¬ at a hardware store.
Another backup only costs you the extra washers and you can go for two backup locations on some good V4 stainless steel.
