Why is the iPhone so expensive?? $599 upfront, and that's before you start paying monthly contract prices? Is that correct? I got the iPhone 4S the day it was launched, for free, with no setup fee. My monthly tariff isn't the cheapest, but this seems extremely high.
I'd shop around and see if you can get a better deal on the iPhone. To be honest, there isn't a huge difference between the 4 and the 4S (I upgraded from the 3G, or else I wouldn't have bothered), so if you're not particularly concerned about having the absolute latest model, you could probably get the 4 a lot cheaper, and maybe still get your Speedy!
Speedy will always be around, but as you mentioned, there may be an increase...