IPhone 4s memory? 16gb or 32gb! Which one?

Getting and iphone4s and don't want to many songs 200 or 300… And not to many apps i know i can't change the memory card after so which one? Oh yeah and i have 800 dollars as a budget and get like 80 a month too pay for my needs

For that I think a 16 will be ok. I have a 16 GB iPhone 4 and I have 263 songs almost 500 photos 70 videos 48 apps and it's using 9.8 GB