HOW MUCH DATA SHOULD I GET FOR MY IPHONE

I'm going to buy an iphone 4s with verizon within the next couple weeks, they don't have unlimited internet they have the gbs, i don't really understand how to calculate how much i should get. I use facebook and apps and play games when i get bored… Is 4gb enough or should i get more than that?!

ALL OF IT DON't GIVE UP GET IT ALL!

OK depends on what your going to download and watch over the net, I download a few apps a week, watch multiple youtube videos, have alot of news apps and other internet required apps running every day and often have a internet radio playing for a hour or two a day, in a month i can run up about 2gb and haven't quite made 4gig yet

However this is on a superior android phone (awaiting hate mail) so apple may have things i don't know running in the background, but the chances are its six and two threes.