Also a very simple fact
Doing 3d graphics is bloody hard. You can't just drag a mouse/stylus along a 2d surface anymore. You have to somehow create angles that emulate a 3d shape on a 2d screen.
So Paint3d is actually pretty much wasted on most users.
(Note I quite fancied a 3d printer for my birthday in a couple of months. But I discovered I'm never going to be able to spend enough time to master creating objects in 3d on the computer screen.)
Biting the hand that feeds IT
