I have just one little suggestion for the display. That big ugly yellow message looks.. well, ugly. Instead of having it written twice in two posts, maybe write it only once on top of the first post with the upgraded/unupgraded part removed of course and maybe lower the font size. Then above the decks post in the first post Unupgraded and Upgraded in the second in big white letters (or any other good-looking color, really).
Not sure if you are following me.