Why on earth doesn't Stern release rule sheets for it's games?

Appreciate the code isn't finished yet, but would it really be that hard to release information about what you are actually supposed to do in each mode?

? Perhaps its because the info would be super-ceeded a few days or weeks after release with all the new code coming out so often ??, but its certainly a good question. I would imagine that things get invented and changed too quick for a deep printed rule set. Now that there is competition, it seems everyone is holding info close to their chests.

Stern knows its customers don't mind waiting a little for the code updates, so it releases machines to cash in literally to the excitement that is generated initially around a new release. Welcome to all things new n shiny. People just love to be the first owners of brand spanking new toys.
It will all be history in 3 or 4 months when much more code is finalised and people are ready to order anyway.