Mel Brooks's, "The Producers", immediately comes to mind as we talk about crowd-sourcing financial backing for entertainment pieces. Kickstarter is great, but, like many new businesses, it creates (temporary) efficiency by bypassing regulatory restrictions that were put in place to protect us from criminals looking to game the system.
And apparently, people are willing to pay even without the creators having to give up equity. So even if that option legally existed today, why would they?
It's certainly true that some people are willing to pay. I consider myself a person who's primed for contributing to a kickstarter, and yet I've never pulled the trigger on one because it doesn't meet my minimum criteria for investing, which is a monetary return. I imagine I'm not the only person who feels this way, and to open up that option to people only brings more money to projects