Vista Ultimate here is $200 too, not 300 (home premium is only 117$) where? are you talking about retail boxed version? OEM is limited to only one computer.. once you install your liecense will be fixed to that computer and you can't move it later if you upgrade .. check the EULA.. retail you can move it as much as you want also where i can buy the 200USD ultimate? mine comes with a big box and two DVDs 32/64bit + manual and alot of useless papers