This is why we asked so much for Server Core
This study from Jeff Jones blog show why the Server Core feature of Windows Server 2008 was so expected by security professionals. We can see a 40% reduction on the vulnerability numbers for a server running Windows if it was using something like Server Core. My main concern now is if software providers will enable their products to run over a Server Core server. It would be a shame to have this feature and can't use it because some piece of software demands Solitaire to be installed in order to run :-)