iPad Mini storage options

Hi there,

I'm really thinking about getting a retina iPad mini. The issue is that that the tablet is pretty expensive - i'm not willing to spend over 400 dollars. So do you think 16 gb are enough? I use Google Play Music and have all my stuff stored on Google Drive so i'm pretty cloud orriented, but I still like to keep my music offline (at least 4 gb of it)... Do you think i can manage living with the limited storage? Anyone with a 16 gb iPad can please share his experience? Do you think maybe its just better if I get a 32 gb nexus 7, even though it has worst apps?