Microsoft is completely correct that if they are on the hook for stability and security of Microsoft products then they need to kill off software they can no longer sustain or maintain. Microsoft should be free and clear to "end of life" both Windows XP and Office 2003. What the problem is that their "replacement" for the products seem dubious.
We know what the problems are with Windows 8 where you can find the issues all over the Internet with simple searches. Since
As for Office 2003, many places have already "dealt with it" where they are sticking with it or moved onto simple alternatives. If one is still using Office 2003 then they didn't need the "cutting edge features" of modern Office where Google Docs is easily more than enough for them. Convince this "bottom segment" of the market to upgrade is a lost cause for Microsoft. These customers feel like they don't need the new features and complexity and not at the price they are asking.