Mahal po kasi ang Windows 7 Ultimate, kung legit user ka ng Windows 7 syempre dun ka na sa mura which is Windows 7 Professional, kasi sa client mo lang naman ilalagay more on browsing and gaming.
Di mo kelangan ng Ultimate unless nasa corporate ka where Bitlocker (encryption) is a must. Other than that, dagdag features pa yan which means dagdag processing cycles which means potentially slower machine.