i get to upgrade to an s5 on monday and im just curious what you guys think i can get for my used s3 on the open market.... its had a zagg case friendly shield on it since day one, and protected with a body glove drop suit case. No dings on the corners. The back plate isnt mint. A few spiderweb looking marks on it. I also have a Zero Lemon extended battery 7000mah, and another zero lemon 2300mah spare battery. Also the stock battery. so 3 batteries in all, and an external charger. The power button is a little finicky but only when you hit it to turn of the screen. It powers on just fine. Internally everything seems to be fine. Never really had any problems. Never rooted. What do you think?