Most WinXP users won't migrate. They'll continue to use WinXP until their computer breaks, then they'll buy a new computer with the latest !Windows OS and carry on. Some will pay for an upgrade to the latest Windows OS, because "they don't want to change" (not realizing that they DO need to learn a new OS, and it's just as difficult to switch from WinXP to Win8 as it is to !Linux). A very few will switch from WinXP to !Linux. I welcome them, and extend all the support the Linux community has to offer.