With only 9GB of user-accessible storage, the 16GB variant of the GS4 simply won't do for many users. Sure, you can throw a microSD card in it for movies, music, pictures, etc., but that won't help in the slightest if you need more space for apps (for now, at least). The solution? Get the 32GB version. And if you're on AT&T, Amazon just knocked the price down by $40, making it comparable to the 16GB version's retail subsidized price.