Jesus, I don't mean for me. I haven't touched XP in years, and have very rarely used any Windows OS for the past 5-6 years.
But there are millions of people in developing countries who can't afford to upgrade, or don't know how. Have you considered that? This is not a first-world problem.
Why not accommodate those users? MS doesn't have to support the OS itself, but think of how much trouble it could save developers around the world -- inside of Microsoft and out -- if all these XP machines were automatically upgraded to IE9.
Stop using XP.
Seriously.