Westerns pop up every so often, everybody does a western and then they all die.
Studios might cast an actor because he is too tall next to the leading lady, who is too short, or they might not cast your guy because he's blond, and they wanted a brunette. There's all kinds of reasons why they want one person over another. I don't worry about it, but it can hurt sometimes if you really wanted something, if you really went after something.
I see the Internet as the next big deal - I wanted to get in on it early on so I wouldn't get behind it all.
Digital blood is not effective.