How much will an iPhone 4s/5 cost on boxing day?

How much do you think an iPhone 4s and/or 5 is gonna cost on boxing day or black friday? Without a plan, i'm thinking of getting a plan later

The iPhone 4s will be cheap or even free with a two year contract but because this phone can be updated it will not be discounted really low in price anytime soon. The 5 series will stay the price it is for a while. Apple is not known for doing seasonal discounts.