Someone who is still using XP has a computer that's more than five years old and has never upgraded. Or, they assemble computers from scratch and don't want to

Someone who is still using XP has a computer that's more than five years old and has never upgraded. Or, they assemble computers from scratch and don't want to shell out extra cash for an upgrade, especially considering that Windows 7 is slower, has compatibility issues with older software and has made questionable "improvements" to UI.