Aren't surface covers $100 though ? So that would be a $500 (400+100) in total.
And some pens are $40 though not everyone needs the pen.
And some pens are $40 though not everyone needs the pen.
Others only want the keyboard, not the pen. Having only one variant and "take it or leave it, we know what's good for you" is a strategy. Allowing customizing is too.
*If I want a keyboard I have desktop PC with a full-sized keyboard, a big monitor and everything else I need
> On a more practical note, Kinect represents the $100 difference in price between Xbox One and PlayStation 4 this holiday. It's of course Microsoft's prerogative to go "all-in" on Kinect, but we'd sure prefer to choose at retail.
[0] https://www.engadget.com/2013/11/20/microsoft-xbox-one-revie...