1.If the last thousand years or so of art history proves anything, it's that humans are just as likely to make banal, sentimental, intellectually empty, clichridden crap with a pencil or paintbrush or chisel as they are with 3D/CG. Technical mastery of any medium is no guarantee of aesthetic success. 2.All new creative technology is, at first, dismissed by those with vested interests in more established media--I know painters who still think of photography as cheating: a lesser art (grew up with one, actually). 3.Just as art is not about mere technical prowess, neither is it "whatever the artist says it is." If you're all about rendering a few images for fun, that's fine--doesn't make you an artist, though--which is also fine. Art-making requires ambition, imagination AND the ability to use your medium to its best possible effect. If you're not pushing the envelope in some way, you're not really making art.