As the current inflation rate remains well above the Federal Reserve's 2% target, perhaps the Oracle of Omaha's words wave a huge red flag for investors interested in owning Carnival stock. Recessionary fears Speaking more to macro factors, another important reason that it's a smart idea to stay away from this business is the possibility of a recession on the horizon. At a time when personal finances are starting to feel the pinch, a discretionary purchase like taking a cruise might be the furthest thing on the list of priorities for many people.