They respond to this on the Kickstarter page:
> Why aren’t you offering a Digital Download or DVD reward?
> I wish I could give you all everything you want. Unfortunately, giving away the movie could scare off the good distributors for movies like this, because the theater chains insist on having the “first run” of movies before they are available on DVD or digitally. I want all my fans to be able to see this movie in their hometown theaters on the big screen if they want to. I hope you like the rewards I am offering, and if there’s something you don’t see on the page, please comment and let me know.