By Tony Owusu The cruise line has made a big deal that gives it something Royal Caribbean does not offer. Casinos on cruise ships have offered slot machines, table games, and more, but sports betting has generally not been part of the offering. Royal Caribbean (RCL) – Get Royal Caribbean Group Report experimented with limited sports betting on some ships before the pandemic, but it was generally just win/loss bets against the line on big games. Enter Carnival Corp. (CCL) – Get Carnival Corporation Report and MGM Resorts International’s BetMGM (MGM) – Get MGM Resorts International Report, which…