I've not seen much of AI, but it does have a distinct style to it. Owed to the source material, of course, where the film deliberately crafted a claustrophobic, dreary atmosphere to accentuate the horror (it being a horror film, first and foremost). You could certainly argue art for the game style, beauty is a more difficult sell, but certainly it seems to use its artstyle to actually add to the game experience - rather than most AAA games, for which the visuals are simply a medium through which to communicate the game.
Borderlands, again, isn't beautiful, but is distinct and somewhat artful. I was drawn to it because of the artstyle, certainly. But the game didn't live up to it, for me - it was both boring and bland (Borderlands 1), not what was promised by the exciting visuals. Fairly original artstyle, though (XIII aside).
The point, really, was that beauty and originality in visuals are actually two of the biggest plus points of the Indie games scene. As it happens, Mulps has clarified that he actually meant something different in his post, but the point stands - if you want originality, art and beauty, Indie games are likely where you'll find it.