Agree with your point of view Domino44. If I weren't skilled at creating illustrations and graphics, and I was trying to expedite creating usable maps for games, I would consider using other peoples art objects - that would be the only reason I ever use someone elses art. But if I wanted to become a better cartographer, then I would definitely put in the work towards creating my own stuff, even if it wasn't as good as something already created by someone else.

Of course since I am very skilled at creating my own maps and illustrations, I would never use someone else's art for any reason whatsoever.