Modern political conventions hold very little in the way of big surprises or big new ideas, and now that Mitt Romney has announced his running mate, we kinda know how both party conventions will go.
One reason is because celebrity weddings, in America, at least, tend to be highly shrouded in secrecy. (The longevity rate is also kinda, well, short.) Both parties typically keep a close lid on plans or photos, for that matter until after the event.