wow holy sh*t... How did the plastic S3 remain solid for that much longer?
cause people forget aluminum isn't a strong metal. they make soda cans out of it. think how easy it is to crush a soda can. plastic on the other hand can be hardened or weakened and can be made to be stronger than some metals.
but why care...
Because some people (like me) are clumsy and will eventually drop their phone. My droid I have, I have dropped it on the concrete several times. Some nicks around the edges but it's still together, no scratches on the screen and still going. My friends I5 he just got took the same drops and had to get repaired already. Knowing your phone can take some damage is always a plus.