I know one bloke who does that, but It seems like a bit of a faff and you still end up with just a dumb image that is out of date before it leaves the printer and with all the clutter and mess of airspace up to heights you probably wont ever go up to.
Skydemon is now so helpfull and clear, its only downside is it makes planning and navigation around airspace so easy, I have to kick myself up the rear every so often and re-introduce myself to old fashioned pilotage, in case the magic box ever breaks on me