Should I upgrade Win 8 to Win 8 Pro now?

Hi guys,
I just got a gift from my friend which is the new Win 8 OS! The thing is, it is the normal Win 8 OS instead of the Win 8 Pro.
I know from my experience that Pro Edition is better in the case like Win XP Pro.
But since this Win 8 OS is a whole new thing, I wonder if it is necessary and worth it to upgrade to Win 8 Pro?
