Do people still use these¹ cameras seriously, or is Microsoft trying to out hipster Apple? [1] : https://c.s-microsoft.com/en-us/CMSImages/Surface_J_Overview...
Scanning back solutions also exist (basically a scanner that you can attach to the camera) . These cost thousands of dollars each and may take a few minutes per image. You cannot use them for moving subjects. [1]
These factors make cameras like this a very rare sight indeed.
[0] http://www.dannyburk.com/drum_scanning.htm [1] http://www.betterlight.com/products4X5.html