In the Unfair Kickstarter campaign we are offering 2 full extra theme packs as stretch goals. Thats +50% content at no extra cost. Now that's generous, but hardly original. Some projects do this and offer those expansions as additional sale items in retail. Like some other projects, we take a long view through retail, and will make those expansions part of the core game. We think thats a win win for backers, who get +50% bonus content for their support, and for those who buy the game in retail without having to pay extra. Both gamers are important to us.