What's the point of that? We do the same thing in software all the time. You get basic functionality for one price, and pay for a key to unlock extra features. Why should hardware be any different? So the law would somehow require any feature on a hardware product to have some physical difference and not be purely a software limitation? What is the advantage of that? Just increases cost to the manufacturer (which will get passed down), then also precludes any possibility of upgrades by purchasing a software patch.