Buying a used iphone? Where would be a good place to but one?

I want to buy an iphone 4s because my old one broke. Where is a good place I can buy a new one, used, for a reasonable price and in good condition (preferably on the internet)?

Craigslist but you'd have to be careful

You can buy used iPhone's from Amazon or eBay, just like you can buy anything used or new, and most of them will be cheaper than the new phone.

It depends because theirs a place called gamestop that sells iPhones but their mostly carry AT&T iphone4s and one or two Verizon iphone4s that's ok place not the best to get it I'd rather go with amazon they have a wid selection of iPhone4s white black AT&T, Verizon their r some used and refurbished iphone4s hope I answed your question