That or the http://en.wikipedia.org/wiki/Shoe_(cards) contains many decks like in real life. I have not paid attention to how many decks are in the shoe.
Theres supposed to only be four of a kind in a deck
Unless there is more then one deck. Based on the three 9 of spades there is at least three decks used. Most Casinos use many decks, to make card counting alot harder.
Its the norm for casinos to use multiple decks and has been for a good 20 years it makes card counting much harder, so its a fair bet that the casinos would still use multiple decks some in real life use up to 8.