And just to extend that point - people can upgrade to an SSD or a new monitor without buying a whole new PC (unless they have an ultrabook or all-in-one, and th

And just to extend that point - people can upgrade to an SSD or a new monitor without buying a whole new PC (unless they have an ultrabook or all-in-one, and they are relatively new categories). Its not like the old days where you needed to upgrade your whole architecture (or buy a new machine) every couple of years.