'Systems-As-Art' In Games
GameSetWatch has an interesting essay about the relationship between games and art. Matthew Wasteland discusses the difficulty in translating other artistic creations to video games, giving Moby Dick as an example. "If Melville had so much as allowed for any possibility at all where Captain Ahab 'wins,' no matter how remote, the work's message and its interpretation of the world completely changes. Instead of destiny and fate, we would now speak of probability and chance." He then goes on to examine whether the logic systems and rules that define a game can achieve the status of art. "Distancing the work from the 'entertainment' of popular games is fine, but even the most artsy, obscure and difficult works must connect with an audience somehow. I am not sure a system of rules by itself is the best method to achieve that. If rules are art, could not one just as easily publish a rulebook, and leave it at that?"
There are rules when reading music, or reading poetry. You don't read a book backwards, or watch a movie from the middle.
While I would say that there are very few games that have noticeable depth as literature, that doesn't mean that's inherent in the medium.
For that matter, very few movies have as much depth as novels, even novelizations of movies explore areas that the movie simply can't reach, and that doesn't mean movies aren't art. Not all games are "play balanced", and not all books are "Moby Dick".
And speaking of Moby Dick...
There are plenty of stories where the ending would be just as satisfying and meaningful if you got there by a different path, or even with a different character. Getting there can even give you an appreciation of the trials of the protagonist that you wouldn't gain if success or failure didn't depend on your decisions.
And play-balance doesn't mean giving Ahab a chance to live, there are plenty of games where it's impossible to "win" one side, and the "victory conditions" are based only on how well you lose. There are even games where the story is almost completely fixed, and all you can do is spend more or less time exploring the scenery.