If it's in the cloud you can choose not to use the cloud service. If it's on device - a device you'e spent over $1000 on and already own - you don't have a choi

If it's in the cloud you can choose not to use the cloud service. If it's on device - a device you'e spent over $1000 on and already own - you don't have a choice (unless you want to forgo all updates, including security patches).