Me tooStill perfectly happy still with my Nike S3 since all I do is use it to tell time and track my runs. Great battery life too.
But it's running low on storage for some reason, even though I haven't uploaded music or photos on it and keep apps to minimum (I have the 8gb version of the Nike S3); could be cache , I will reboot and see
I want to upload a couple of playlists for the gym/running, as I don't want to have my phone with me when I'm working out so I might have to upgrade for that reason alone
But other than storage, I have no compelling reason to upgrade