every iphone i have had i never went over 16gb
i dont really use it for music but I load it up with pics and apps which says a lot cause I love music but if im at home i just use my mac book itunes library if im at work I wold do the same
in the car im on pandora or ESPN radio
if you dont really use your phone for music or videos its no need to get over a 16GB
and if you upgrade your iOS from your computer instead of your phone it wont take up the space if im not...