If you do the free upgrade, it is then free for the life of that device. There will not be any fees or charges after the one year period expires for that upgraded device. If that's what your wondering. If you wait until after the one year free grace period expires to upgrade your paying to upgrade. Even then, once you upgrade, there are no further fees or hidden charges. That's my understanding based on what I have read/stated by Microsoft. It's getting very hard lately to separate fact from fiction as may sites seem to have their own interpretation on what was said. Then it gets repeated on another site, and eventually after being said many times it gets taken as fact when its not.