Amazon has the PlayStation 4 with The Last of Us and PS+ for a year for $399, only today and tomorrow. If you're not quite sure that there will be a price drop, this might be the best deal unless you want to hit eBay and snag a $350 PS4 until supplies run out.
It's inevitable that the cost for all current systems will go down, but there's no telling when. With Sony's Morpheus dropping in the first half of 2016, we know that Sony will want the biggest market for its peripheral, meaning the PS4 must be in as many homes as possible. There's still reason to hold out hope for a price drop, but these deals are pretty good too!