I'm too cheap to purchase the new iPhone, but... All of the vintage iPhone users can upgrade to the new iPhone OS, which brings everything but the speed of 3G and the GPS unit inside.
However, I may have to purchase a new phone in due time. Some fantastic applications at the App Store. I'm afraid that in no time, I will fill up my little 8GB phone. I particularly love the Remote. This thing works like a charm. I just wish it also would control the entire AppleTV interface experience and not just music being played through the AppleTV. I see huge implications for where all of this is going.
And while I'm at it, I couldn't live without my Jott account. And I love their new iPhone application. And I also love my RSS feed reader, NetNewWire, that also has a new iPhone application!
This thing rocks my world!
There's something perverse about using the word "vintage" to describe an iPhone. Heh.