I dunno if you've decided already. This thread hasn't been closed so I hope my idea's still welcome.
Are you already in university? If yes, then the 32 Gig is way better, if, and only if, youre gonna put your academic needs into consideration. If you wanna have extra space for that then I think that itll all be worth it. But if you want extra space just for multimedia needs like movies, music and games, I think 16 gig is fine. I dont wanna sound like I am underestimating our multimedia needs as these have kept me sane since I gotta hold of my iPhone. Lol. Then again, it depends on your reason WHY you are upgrading that you should consider first before buying one just for extra storage. Good luck to your studies and on your part-time job! I hope my younger bro would also have that trait of working his a*s off to save then buy for the stuffs he wanted and not to just ask from our dear folks.