tl;dr: My opinion: "Stretch goals can grow your Kickstarter's income linearly but you grow your project's complexity exponentially."
So far Kickstarters have had good success. We are still waiting with anxiety for the first big failure.
Obsidian and the leaders of this project really have built up a lot of credibility and have a great track record. No doubt Project Eternity will be great.
But there is something that worries me when I see more and more stretch goals added to a Kickstarter. As a kickstarter you pitch the project with a certain focus. You don't know how popula