Every single photo I send the newspaper I work with ends up at 200 DPI.
The files they request are specifically only 10 inches at 200 dpi, or 2000 pixels on the long end max. That's legitimately two megapixels.
The 20 megapixels of the 1DX2 are perfectly big enough for anything we do already, and they're "small" enough to make shooting 15,000 photos for one event not a disaster for storage, since we keep and archive legitimately every single raw image we've ever shot.
That's all well and good for the dying newspaper industry, but that's hardly the only use of the 1Dx II. As I've explained too many times, there are lots of other professional users out there with different needs.
My needs require maximum flexibility because the images I shoot can end up being used in any number of ways from the web to billboards. Sports shooting almost always requires cropping and often it is radical cropping because the action is unpredictable and I can only be one place at a time. A further complicating factor is that if you shoot for web use, almost everything has to be horizontal, even if the action demands vertical. That also means shooting loose and cropping those shots later for other uses.
A shot that's used on the web might also be needed for high quality print (yes, at 300 dpi) and that same shot may be cropped by the designer and used vertically. Some shots will end up as large prints on the walls of the campus. Others may show up on a billboard. All of the shaving off of pixels adds up and I'll take any increase I can get.
I'm really getting tired of people on this forum who tell others what they need.