100MPixel cameras- in the research lab 20 years ago. Cost a lot more than $10K.
I would like to see other numbers such as saturation count and dynamic range on the sensor. My opinion: years ago commercial cameras reached past any reasonable number for pixel count. The need for higher dynamic range is still there. The difference between a film camera and digital can usually be seen in highlights and shadows. Smaller pixels typically have a low saturation count, the "noise floor" is still there.
I will not be buying one, but it cost only 25% more than my 18MPixel M Monochrom. I paid for that and the M9 by selling lenses, mostly Sonnars converted to Leica mount.