DataHub OSS Core is open source, but "free" shifts cost rather than removing it. Production self-hosting means a dedicated team standing up and maintaining Kafka, Elasticsearch, a metadata store, the GMS backend and a frontend, so the real total cost includes that infrastructure and operations work. DataHub Cloud pricing is opaque - the Enterprise tier is available on request with no published dollar amounts - so buyers can't budget either path upfront easily. Dawiso is managed in every deployment option with the same features and support on every plan, so there's no self-hosted ops burden and no "the operational features live in the paid tier" split.