Status: OUT
Production-grade private data access in GCP requires navigating a cost matrix across two independent dimensions: a universal connectivity tax from VPC peering constraints (non-transitivity, overlapping IP prohibition, DNS non-resolution) affects every data service identically, while production protection investment (HA, replicas, backups, encryption) compounds independently within each service — making total data infrastructure cost the product of service count times the sum of connectivity overhead and per-service protection engineering.