The more art the better ^_^

I am responding to Jen's blog question "Do you think teachers should incorporate art in their lessons, whether they use paintings, music, or other forms of medium?"
I think that teachers should definitely incorporate art into their teaching. Different people learn through different methods and using a larger variety of methods helps the people more. Some people need things explained to them, while others need things shown to them to understand. Some people learn best by practice. I think a good point to make is that there are no negative effects to incorporating art into various lessons. In a way it is like using an analogy, which teachers do quite often. It would be more convenient because more people can relate to a work of art than they can to an analogy. The reasoning I have behind this opinion is that art is more open to interpretation and therefore has a larger audience possibility. But i definitely think that it would be a good idea to incorporate art into lessons.
question: Is there a reason why this would be a bad idea?