The difficulty with anime is that it’s become a highly derivative and imitative market- the high overhead bumociated with animation means that most studios prefer to produce safer, more conventional material that fits within previous conventions- this tendency is very strong in Japanese development systems in general. It’s thanks to this trend that we have most anime cliches, actually…

Generally speaking, though, it leads to a glut of very similar, very generic shows. You also end up with a lot of the same viewer-oriented material, such as the concepts of fanservice or merchandising-oriented writing.