I would have to agree. In the whole games-as-art debate, I think there's every reason to think that games are capable of art, but that very few artistic games have actually been already made.
Furthermore, the state of mainstream games is even worse than the state of mainstream films, with it being hard enough to find a good, fun, new game by a major publisher, let alone an artistic one.
But there is a lot of hope in independent gaming. For me, at least. World of Goo, Braid, the Chzo Mythos (Yatzee's own games), Passage, Cave Story, Cortex Command, Lugaru (& upcoming Overgrowth), and Aquaria are all examples of really fantastic or interesting games coming from independent game makers. Most of them are primarily the work of one, or two people, which is excellent because I think the reason films and games so often have trouble being artistic is that they just have too many people working on them.
I've heard people make predictions about the future of mainstream games, citing the fact that it's beginning to take ridiculous amounts of people and time to make a single game... but honestly, what intrigues me more is the fact that at the same time, it becomes easier and easier for single people to create full working games, using tools like Game Maker and Adventure Game Studio.