It's one thing to spy, but the devices that phone home will stop working if they receive a command to do so. Smart TV's have a 'kill switch, so do smart tractors. And companies are willing to use it - Amazon will delete your account for giving them bad publicity. Google will delete you account if you use a chargeback.
In the current legal landscape, most 'smart' things don't belong to you
In the current legal landscape, most 'smart' things don't belong to you