Hey everyone! I'm relatively new here (just registered) so I figured that it would be appropriate to first introduce myself. I'm Walter, 19 years old and from the Netherlands. I'm coming to NYC this summer and will stay there for 3 weeks (plenty of time to look for my Iphone). While I am in NYC I would like to buy a used Iphone 4S (UNLOCKED), but since I don't really know the city I would like to request some advice on what shops I can trust etc. A lot of people recommend website like craigslist/ebay but since I'll be going back to Holland after the 3 weeks I want some certainty that I bought a working Iphone. To make a long story short: What are the best shops in NYC to buy a used IPhone 4S (UNLOCKED)?