the MSDN Operating Systems package is probably the best deal. It costs $699 for the first year, with renewals running $499. That’s a steep jump from the $199 and $299 annual costs (renewals $149 and $249) for TechNet Standard and Professional, respectively.
http://www.zdnet.com/microsoft-to-shut-down-technet-subscription-service-7000017541/?s_cid=e589&ttag=e589