Xbox One bundle price drops to $399 on Amazon (update: back to $450)

We're not sure if this is a real price drop or a retailer error, but CheapAssGamer.com points out that the Xbox One is currently available on Amazon for $399 -- the same price as a PlayStation 4, but obviously with the Kinect camera and a game packed-in. The Xbox One Standard Edition (with the Forza Motorsport 5 digital code) is currently listed for $450, but adding the discount code XIAMAZON -- first seen last week as retailers cut prices on the Titanfall bundle to $450 -- takes an additional $50 off of the price. Of course, this means you don't get the console's most anticipated game as a part of the deal, but at this price we doubt many will complain. It's earlier than an anticipated and if it's an error (of course, Amazon is starting a videogame Gold Box deal today...) then we don't know how long it will last, but tell us -- if they're the same price which would you choose, an Xbox One or PS4?

Update: It looks like it was an error, as the bundle's price has jumped back to $499, which comes down to $450 with the discount code. It was good while it lasted, but we guess Microsoft isn't quite ready to make that level of sacrifice to catch the PS4 in sales.