That's not an argument at all, because sales for anything, be they books, movies, or videogames, is based on a combination of image and quality. Horrible games like Enter the Matrix sell well, but so do great games like Ocarina of Time. In literature, uninspired fantasy ripoffs (which I shall not name) sell incredibly well, but arguably the greatest work of fiction ever produced, Lord of the Rings, is also the best selling book of all time. Horrible movies like Batman and Robin do great at the box office, but the movie that's sold the most tickets ever, Gone With the Wind, is also one of the best movies ever made. If something lacks in quality, they make up for it in image. If something lacks in image, they make up for it in quality. The TRULY successful movies/games/books are the ones that have both image and quality.