Points against that: - I can have a wacom (or similar) device connected to the desktop - I can even .. use my android tablet as mouse/touchpad/wacom simluator

Points against that: - I can have a wacom (or similar) device connected to the desktop - I can even .. use my android tablet as mouse/touchpad/wacom simluator The benefit: The result instantly on a bigger screen (and maybe even a really big screen if I connect the desktop/laptop to a projector or something).