I just got the 32GB upgrade. They told me "$50 more" when I ordered it, but the actual cost was $70 more. That didn't stop me; the extra space WILL come in handy.
I love how my apps instantly downloaded to the phone once the SIM was migrated. Pity the game save values didn't carry over, but I didn't have to spend 15 minutes re-setting regional and other settings. Yay!
After wrecking my Razr, via a secondary font change in FontChanger, I'm not rooting anymore. From what I can tell of the S4, most of the tweaks I had working for over a year aren't needed anymore. Only firewall and ad blocking software would be nice...