There are at least three papercuts in each box. If you'd prefer to pay for each one separately in addition to the Personal Licence EmbellishBox then there will be an option for that - however, the cost will be higher per template. If you want to have the licence for each one then this is definitely the most cost effective way to do that.
Or go ahead and subscribe, but make sure you cancel by the end of the month. It's cheaper - and it means you don't need to remember to buy it again next month!