I don't know that this helps Intel if consumers just upgrade their existing machines. Windows 8 is considerably more efficient than Windows 7 and I assume that Windows 10 will be as well so there may be a lot of Windows 7 customers upgrading their existing systems instead of buying new systems.
There are still a lot of Windows XP users out there and they would probably go with a new computer.
Microsoft started their "cheaper windows" program last Spring to respond to Chrome making inroads on marketshare. I wonder if they will have to continue to discount on mainstream and not only inexpensive systems. I could see discounts being bigger on new systems compared to upgrades.