Hi. Sprint just told me that they'll give me a "free" 16GB iPhone 5S if I want. Of course, I put free in quotes because they will require I sign another 2 year contract with them. But I can keep my iPhone 4S if I want. As we all know, the new iPhone will ship in Sept or Oct, so I'm mulling it over. I don't have a lot of money May I please have your opinions? I don't want Verizon, could go to AT&T, I suppose, but Sprint has been a bit cheaper. I live in San Francisco, in case you want to mention reception. What do you all think? Thank you!