It probably won't take too long (a couple of months, even less) for these guys to figure out another "root" !
I'm sure Apple wants to keep this as difficult as possible, of course. Perhaps a check value in each machine and a corresponding one at an Apple server that initiates a 'conversation' between the two until Apple decides the machine has the right "genes"? This will continue until one side determines it's not worth the effort. And Apple has some pretty deep pockets and several hundred bodies to throw at the problem. Of course, the other side may have fewer people and much less capitol, but the one thing they have is time. It would seem to me that Apple could come up with multiple schemes and have them ready for each scheme the hackers figure out. Maybe even
before they figure out the current scheme. One step ahead, so to speak.
As long as they match the hardware and software quality, I won't be opting for any Hackintosh. Especially ones that are only marginally cheaper than the real thing. But, except for a few companies that see a profit in making these machines, I don't think most of this work is done for any more than the 'fame' of doing it. Some people thrive on these kinds of challenges, and sometimes good comes out of it. At least some people are learning a lot of information that would be very costly to obtain, otherwise.
I'm not sure, however, that my grandkids, kids will even know that Apple used to make "computers".