I can't modify the hardware on a television reasonably, I can't change the operating system reasonably, nor can I modify the loaded software. I can't choose to run the server that it phones home to.
I can remove my laptop's webcam, or order one without. Same for a mic (lenovo/dell/hp have 'government specials' -- laptops without mics/cams/antennas), I can review the software I install, I can change it, etc. I can run my own email server.
One system enables the user to have power over the system itself, one doesn't. We need to stress the importance of users' power and ensure it for the future.
Don't buy such walled systems until the walls are removed so as to enable them to be functioning members of our user-centric society, rather than their profit-centric walled garden.