Absolutely this. I had someone say "well my phone would be worthless anyways since it would be locked" I laughed at them. I said so your perfectly good screen has no value to me if mine is cracked? Your speaker in the phone worthless? And so on. I am typing this on an iPhone 4s that has had more donor parts then I can even fathom. You can buy unlocked motherboards as well, though with Apple locking things like the home button to the board not entirely sure how that would work but the point stands the phones are definitely with something locked or not.