Anyone kept theirs for more than 4?
I go every 2 years, I am on the "non-S" cycle. 3G -> 4 -> 5
I was on the "S" cycle. However, we were adding my son to the account and my wife suggested that I get the iPhone 5 and give my son my 4S... Who's ever going to argue with their wife, right?
I may upgrade to the 5S since I am technically eligible for an upgrade at the end of June 2013. I can give my iPhone 5 to someone in my family to use if I feel the upgrade is worth it...