I’ve got no idea what license you were quoted. Windows Server 2008 R2 Enterprise retails for $3,919.00 including 25 CALs. If you don’t need the Enterprise edition features you can look at the standard edition which retails for $1,029.00 and comes with 5 CALs. Additional CALs aren’t very expensive. Microsoft lists a 5 user CAL pack at $199.00. The Microsoft store page has the Microsoft licensing, just select Windows Server from the Product list.