According to The Times, leaked internal documents have pinpointed the price tag of the PlayStation 4 at £300, which Google tells me is $465.63. Since that sounds like a terrible number for a console price, I'd wager it would be knocked down to $450. For the sake of comparison, the PlayStation 3 had a launch price of £425.
Perhaps even more interesting from the article is the idea that "because company executives want to see Microsoft’s updated Xbox before PS4’s release, Sony is unlikely to reveal exact prices or dates for the new PlayStation at next week’s event."
Showing off a new console without a price point is a bit of a tease to consumers, since it's hard to get excited for something you're not sure you can afford. Let's just hope Sony has learned from the PlayStation 3 launch.
Sony upgrade cheaper than predecessor [The Times]