Because you can upgrade to iOS5 and get 95% of a 4S to hold you over. If you can't wait 14-21 days for 3Mpix and Siri, then I'm not sure what to tell you. Yes, the A5 will be snappier, but I'm using my 4 with iOS5 and it's pretty much satisfying my expectations until my 4S gets here whenever that may be. Am I missing something? What does the 4S have that a 4 w/ iOS5 doesn't beside the camera, A5, and Siri?