I bought an iPhone in October 2007 and today it is still working, albeit with a cracked screen. When I saw the new iPhone 4 presented I got the itch to get a new phone. I could wait a few weeks and pay $200 USD for the latest iPhone, but I decided to buy the iPhone 3GS now for $150. I held on to my old first generation iPhone for more than two years. I hope I can do the same with my this one.