Earlier quoted context omitted.
Snowflake's margins are like 90%+ on top of the compute they sell, and they pass on all these costs including egress directly to customers.
Their list price for storage capacity is only on the order of 2x what S3 charges, and Snowflake and S3 likely both offer discounts. Comparing compute costs is harder. If I were running a service like Snowflake, I would certainly appreciate the effortless scaling that the major clouds offer. But I also know what I pay for actual servers and roughly what I would pay in a major cloud, and I much prefer the former.
Anyway, there is an explicit egress charge: https://docs.snowflake.com/en/user-guide/cost-understanding-...