Don't know how long this will last, but if you enter in the code XIAMAZON when you purchase an Xbox One from Amazon, it brings the price down to $399.99. Yup, that's $400 or the same price as the PlayStation 4.
The Standard Edition does come with Forza so you'll get a decent game to play with it. At that price though, it's hard press to pass it up if you're still on the fence. The console's getting some good updates and you can get into all the fun that everyone is having on Titanfall with this and the purchase of the game.
-Update Looks like a pricing error was the cause and it's back to $450. If you got in on the deal, good for you!