Ethereum's Blob Storage Outperforms Calldata in Efficiency

Ethereum's blob storage is cheaper than calldata because it was designed as temporary data availability, not permanent transaction history.

Blobs have their own separate fee market, allowing blob data to be priced independently from normal transaction execution. This makes blobs more efficient for the type of data rollups need to publish.

The cost advantage is a design goal, not a permanent guarantee that blobs will always cost less in every situation.