Topic summary
Subscriptions

Extracted from the Wikipedia article Subscription business model.
Subscriptions
Rather than selling products individually, a subscription offers periodic use or access to a product or service, or, in the case of performance-oriented organizations such as opera companies, tickets to the entire run of some set number of (e.g., five to fifteen) scheduled performances for a whole season. Thus, a one-time sale of a product can become a recurring sale and build brand loyalty.