Is Cosmos DB expensive?
Just so, how much does Cosmos DB cost?
To put that in context, the starting price of a Cosmos DB database is now $23.36 per month, or $46.72 to take advantage of the multi-region goodness.
Hereof, why is Cosmos DB so expensive?
Cosmos DB is not priced based on the usage. Of course, Cosmos DB is more than a simple NoSQL database but like other NoSQL databases, the price is based on what you reserve. So, the analogy is renting a car rather than hailing a cab – you pay regardless of you used the rented car or not.
With Azure Cosmos DB, you are billed hourly based on the provisioned throughput and the consumed storage. For the provisioned throughput, the unit for billing is 100 RU/sec per hour, charged at $0.008 per hour, assuming standard public pricing, see the Pricing page.