There is a current trend in subscription purchases. Whether it is a box of random items or an item that is perhaps consumable and needed on a recurring basis (i.e. food supplements, pet food etc).
We have for many years wanted customers to sign up to a subscription for items such as horse supplements, pet wormers, pet food etc.
Benefits of subscribed purchases:
  • Forecasting of inventory made easier.
  • Securing customer loyalty and repeat business
  • Less need to discount to gain the repeat business
  • Easier to plan goods out demand.
I understand this is a complex development but think there is huge opportunity here.
Here is an integration from another platform that goes in to detail about the functionality: https://apps.shopify.com/recurring-orders