The PS4 is in high demand, and Sony is just about breaking even on each one. The PS4 by itself is selling for over $600 on eBay. Why would they ever discount it? They are already selling out every unit they can so there is no need to reduce the price.
I think they will sell this for $600 and either throw in a Vita game or a PS+ membership. People who want a PS4 will buy it anyway.







