Why does Windows XP refuse to die?

A new poll into Operating System popularity by a British computer magazine has revealed that an incredible 37 percent of respondents are still using Windows XP. That's more than Windows 7 which managed to woo 30 percent of the folk taking part, and Vista could only garner a pretty poor 16 percent of support. This being a PC magazine it should come as no great surprise to see Linux being used by 8 percent of respondents and Mac OS by 7 percent. However, what was surprising was the sheer number of people who refuse to let Windows XP die.