I went from the 5 to the 5s simply because of space. Each iPhone I've had has been 16GB. They served me well until November. With apps sizes increasing, my music library increasing, and the "other" ever expanding I had to move up in size. I did not want to the the "S" this time. I felt the same as some. And after regretting getting the 4S after having a 4 I was determined not to do it again.
5 months later I don't regret it. I got the gold just to make it seem different. When I got the 4s I got white just to make it seem different. The fingerprint sensor works really well. Speed? Not sure I do much to see a difference. Works flawlessly all the time? Absolutely. 64GB too much storage? Probably for me, but rather have more than not enough.
In short...it's worth it.
Sent from my AT&T LTE iPad Air. White in color of course. Or my iPhone 5s. Gold of course.