For the prices they get I'd imagine most transatlantics sail at a loss or just breakeven point. Prices are as low as $25/day for some trips, if they can get double or triple by spending an extra week in the caribbean they will.
11 cruises in 2012, 90 nights at sea visiting 15 countries
8 cruises in 2013, 56 nights at sea visiting 7 countries
Next cruise: None scheduled
PM me if you need a cruisemate for any Europe, transatlantic, or Panama Canal cruises
Date, ship, cost pp