Honestly after getting iOS 7 on my 4S I'm completely satisfied. I toyed with the idea of getting a 5S but until a water proof case is made for it I'm not all that interested.
OP. Had you not sold your 4S would you just held onto it until a 5S with the specs you wanted was available? The answer to that question will determine if you are really happy with your 5 decision.
I wish the 5C was a 100 - 150 cheaper then it is off contract. I'd pick one up ASAP if so and just wait for a water proof case to be made.