Not sure what Win XP has to do with the discussion, but alas. The short release cycles are how things are done here in the Fedora Project. At least one of the goals of the project is to give users the cutting edge of Linux technology, hence the 6 month release cycle. The longer you support a given release, the more of them you have in the wild at the same time, and subsequetnly, a great increase in the labor hours required to mantain/support it.
Howver, the great thing about Linux is, you have a great many choices. If you prefer slower release cycles and longer support, perhaps something along the line of CENT or Debian would be more to your taste