Apple fanboys trying to justify spunking their cash when they wouldn't be able to tell the difference between a 4 and a 4S. Pointless upgrade.
Tell me in what situation it would have been beneficial to have an iPhone 4S instead of a 4? Leave Siri out of this.
Speed. And having the latest version.
Also the camera is a whole lot better.
That's like saying in what situation is the 3gs beneficial rather than the 3g. Or the 4 rather than the 3gs. They all can be used in every situation. It's all about having the fastest and latest.