I bought my iPhone 3GS a couple of years ago. Prior to the iPhone I had a plain vanilla Samsung analogue cell phone. I must say it's the most useful gadget that I've ever owned. At the time I purchased my iPhone I was shopping for a Golf GPS device, a gadget that costs around $200 plus monthly subscription fees. iPhone on the other hand has an app that does the same thing at a cost of $25 with no monthly fees. I was also in the market at the time for a portable auto GPS device - it was $150 for a Magellan device or $70 for Navigon an iPhone GPS app that works just as good as a standalone device. Purchasing iPhone was a no brainer for me. Of course, my monthly mobile fees went up - but I still think its worth it based on how much I use it.