In general, ESUs are a costly option for organizations having difficulty in migrating Windows Server 2012 workloads before the end of support. There is a so-called "free" option, though.

UPDATE: Microsoft recently announced that admins will get three additional years of Extended Security Updates (ESUs) for Windows Server 2012. Microsoft is ending support for Windows Server 2012 on ...

Businesses that use Microsoft Intune, Windows Autopatch, or some other "Microsoft cloud-based update management solution" can get the first year of ESUs for just $45 per user, supporting up to ...

Microsoft provides three more years of Windows Server 2012 Extended Security Updates (ESUs) until October 2026, allowing administrators more time to upgrade or migrate to Azure.