What is a good amount of web data for iphone?

How much is a reasonable amount of web data monthly for iphone 4, gb or mb wise.
Also, does an iphone 4 32gb still exist? Because i have seen many online on various network sites, but when i have called 2 different 3 stores, they claim they don't exist anymore. Anyone shed some light?

Added (1). One more question, is 16gb enough for an iphone? I have around 1060 songs on my itunes at the minute, would 16gb hold that plus around 15 apps?

IPhone 4 32GB has been discontinued. But you can find some in e-commerce websites such as ebay or amazon.
About 2 GB of Data is enough for you or maximum 3GB.

IPhone 4's are only sold in 8GB now. As for a good amount of data, 500MB is more than enough for me. I do however have unlimited Facebook, eBay, and a few other social network sites, but even from watching videos, web browsing and reading news I still have several hundred megs left. You should buy an iPhone off eBay, I got a 16GB iPhone 4 white for like $400 last year… It was like new and it still runs really well.

The Iphone 4 does still exist but there have been two newer models out since then so most stores only sell the latest versions. If you want the 4 you may be able to get one elsewhere like ebay. You can buy them now for $50 as they aren't worth much.

Regarding your data use it depends on what you want to do with your phone. You use data for texts, emails, internet searches and online games as well as downloading apps. So if you do a lot of that get a higher limit. If not then you don't need to.

If you go with 3 mobiles all you can eat data plan you don't need to worry about it, the only limit is the theoretical one of around 1000 gig per month, which you could only hit if you maxed out your downloads 24/7

I myself have a iphone 32gb i purchase off ebay after picking what i believe the perfect phone from the perfect seller looking at feedback and selling history pick a great phone it was one of the more higher priced then the others but it still had apple warranty and i agree 2 gb is good for starters Youtube and pandora, videos burn data fast And downloading