I use movies, video games, books, and many other things to escape the harsh stresses of life. So I try to do that with whatever I create. I really enjoy getting feedback from readers, saying that they sat down and started reading, and then realized that two hours flew by.
I'm not saying that artistic novels can't do the same sort of thing, however, I don't strive for it. Maybe that makes me lowbrow, or not as good of a writer as others out there, but I know what my goals are and its not to be an artist, but to be an entertainer.