The bad news: Those who want the Datacenter version are going to have to shell out 28 percent more for the R2 version than the current Windows Server 2012 Datacenter release. The Windows Server 2012 Datacenter SKU costs $4,809 (plus additional client-access licenses, priced separately). The Windows Server 2012 R2 Datacenter SKU costs $6,155, plus client-access license fees. (These are prices for the Open NL version, which is the highest priced volume-license version.)