My computer can't even handle youtube for very long. Even if I got free software, I'd have to get a new rig to do any kind of large-scale, print-sized artwork on it. I do everything on my 3DS on Art Academy: Lessons for Everyone, and while the art export comes out higher quality and more finely detailed than the prints, if you zoom in it occasionally looks jpg-y. I would never blow up an Art Academy export larger than the 640x480 (or 480x640) default, but I guess I'm just concerned that my watchers who like my AA stuff would order a print knowing the limitations and be denied anyway. It's like, why should I bother to go through my work and find the few things that aren't fanart and do all that mess just to find out I can't sell teeny tiny four inch magnets that are probably smaller than the screen I painted on?
Seeing this post makes me less apt to try and set my art up in the print system, rather than more.