I like tutorial videos as an option, but the game data is already growing quite large, so I wouldn't bundle them. We could simply link from within the game to YouTube/Vimeo/whatever. Even if we had downloadable tutorials as a modular option, we wouldn't really be able to compete with the options and quality of established streaming services like YouTube. Plus, nobody wants to wait for a full HD video to download before watching their tutorial, and compromising on quality or resolution seems like a bad idea So we could offer the original videos for people who want that, otherwise direct people to YouTube/Vimeo/wherever - the best of both worlds.