I was sure he was going to say that it was partly because every movie now seems to be a sequel or based on a comic book. It's so rare to find a mainstream 100% original movie anymore it seems...
Yes, every single one is a comic book or a sequel. That's why they get made, they're what people pay to see. Everyone complains about it, everyone sees 'em.
If you want different movies to be made, go see different movies.
Seems like a self-fulfilling prophecy. If most of what they make are movies in these genres, that's what people will see. I don't even rent many movies any more, and I used to rent a lot! There just isn't much that's interesting, and i have pretty low standards when it comes to action / guy-flicks.
It's a valid question, but what's the point of making a sequel that no one would buy because they know it will be crap. Money is definitely the main factor, so you must make something that the consumer will buy. The whole argument is that consumers are not consuming this product anymore (Theater Experience).