To answer Sean's question, I would say, first, that what is aesthetically pleasing to one, is not to another, and vice versa. Aesthetics, while a philosophical discipline and field of study, is an emotional response, making it very subjective.
Art is a creative expression, whatever form that may take, and all such expressions may not meet our aesthetic expectations. However, because they are creatively expressed, I do not think they can be discounted, and therefore should be considered art.
With all the subjectivity and emotion of art, can there be a real objective truth in aesthetics, or a true beauty, or are the subjective truths all true?