For a growing catalog, storage is both an operational layer and a cost that should be modeled separately from viewer delivery.
Storage and delivery are different jobs
Storage keeps content available. Delivery moves requested content toward viewers. Treating them as separate cost centers makes forecasting clearer.
Catalog shape matters
A large archive with modest viewing can have very different economics from a small catalog with heavy viewing. Measure both stored hours and delivered hours.
Galxy's rate
Galxy prices video storage at $0.25 per stored hour, consumed from the same credit balance used for encoding and delivery.
Next step
If you are evaluating a platform rather than learning the concept, compare the operational workflow and the cost model together.