alan tiger wrote:shoes are used in casinos for dealing games which use multiple decks, which include both blackjack and baccarat.
casinos have moved to using shoes in blackjack, and have virtually eliminated single-deck games. this is because single-deck games are targets of card-counters, who have a greater advantage in a game with a smaller universe of available (undealt) cards.
There's another reason for the move to shoes. When there are only one or two decks, there is more frequent shuffling. Depending on how many players, there are often only two or three hands per shuffle. This is time when no "action" is happening at the table. Casinos like to have continuous action so they have more opportunities to leverage their house advantage.
Shoes can be disadvantageous to casinos in relation to counters. The house has to continue to deal from what may be a very unfavorable shoe until the marker is reached. There have been successful teams, where counters wait for a favorable shoe to occur, then signal a confederate to swoop in and now place big bets.