The Ultimate Extras embarrassment has been quite an issue since the launch of Vista. And Microsoft anticipated the same decision for Windows 7 Ultimate (download), which won't be getting the feature when it's released. Here's the quote that shows Microsoft has given up:
Our new approach to planning and building Windows doesn't have the capacity to continue to deliver features outside the regular release cycle. While our core development team is focused on building the next release, our sustained engineering team is focused on updates to existing features. As a result we don't plan to create Ultimate Extras.