AT&T has announced the availability and price of the Samsung Galaxy S4 32GB model, the phone will be available beginning May 10 for $249.99 on a 2-year contract with the carrier.
At present the 16GB GS4 is available for $199.99, therefore even with the $50 mark-up, the 32GB variant is a better choice. The 16GB variant comes with about 9GB of usable space therefore, going for the 32GB model is more prudent, or you can always get a microSD card.