Sure there’s alot of cliches and repetition in anime, but you could say that about any sort of mainstream media. How many cop shows are on TV? How many mecha anime are there? It’s about producing a product/show that will bring in money. And, let’s face it, people like giant robots. Log in to see images!

But I don’t think this will always kill your enjoyment of anime, you just learn to pick and choose what’s best for you. I don’t know how many crappy mahou shoujo anime I’ve watched, but yeah, lots of it is crap, but some of it is good. And the anime and manga industries also open up the possibilities for really new things to come out. There’s always a twist that can be used, and if it’s used well, that’s worth watching.