It's like eating a burger - they're basically all the same, but there are variations. And a burger isn't anything amazing (even if you find a pretentious one, it's still a burger), but it's still nice to go out and get one now and then.

So maybe I want to watch some capeshit today, but I don't want it to be exactly the same as the ones I've watched before. Many people feel this way, and the market provides.