The first cross-vendor pricing reference for post-EOL extended support. Microsoft ESU: $61/device doubling yearly ($30 one-time for consumers). AWS: EKS $0.60/cluster-hour (6x), RDS $0.100/vCPU-hour doubling in year three. Ubuntu Pro: $25 desktop / $500 server per year. And the honest quote-based rows — Red Hat ELS, Oracle, SUSE LTSS, CentOS ELS — where no public price exists. Every figure traced to a vendor price page or our verified coverage. The cross-vendor price table ...