The program does, but the software you download does not.
Microsoft comes out with new ISV programs about as often as new versions of Visual Studio. As long as you join the latest one every few years, you'll always have an up-to-date set of developer tools.
So all that's left is server costs, which as I mentioned above come to a little over $1k/box.
http://blog.wekeroad.com/2010/05/19/no-sql-in-the-wild#comme...