I think it is pretty silly to claim that the advancement of CG art has a single goal. Higher resolution and more realism is one worthy and impressive goal, but it's not the end-all and be-all. Some people want CG to advance in service of their stylized, cartoon, or fantasy ideas, and the community benefits from progress made on all fronts. Even as a traditional artist (I have a Bachelor's in drawing), while the ability to do faithful life-drawing is an indispensible skill to have in your repertoire, I've always chafed at the popular notion that realistic=good. If I could point to one goal that all artists, CG or otherwise, could be thought of as pursuing, it would be mastering their medium so that they can realize their visions more completely and faithfully. Within that, goals vary, and what artists learn along all their disparate paths advances the art as a whole. Okay, that was way flowerier than was called for... For what it's worth, I'm a toon person, myself. ^_^;