During my last trip to Las Vegas I saw more players taking the bet than declining it. The rules are simple, if the player's first two cards are suited the player is paid 5 to 2 unless the player has a royal match. A royal match is a suited king and queen and pays 25 to 1. Even if the dealer has a blackjack the player still gets paid on winning royal match bets. The odds of this bet depend on the number of decks used, the more the better for the player.
Lets look at a six deck game for example.
The probability of getting an easy match is 0.24462 and the probability of getting a royal match is 0.002968. In addition to the payoff table above I have seen single deck games where an easy match pays 4 to 1 and a royal match pays 10 to 1. In the unlikely event you see this alternative payoff table on a game using four of more decks the player would have the edge. This article is not meant to encourage you to play the royal match but to show you why you shouldn't. Michael Shackleford is better known as the Wizard of Odds.