Today's cruise ships are like floating hotels. They have a complete "hospitality staff" (to serve food and help passengers in other ways) as well as the usual ship's crew. The largest cruise ships have casinos, shops, many restaurants, theaters for both live entertainment and movies, several pools, day care, a gym, and a running track. The most expensive cruises often have more crew and staff than passengers. This means that the people who control the cruise can give many personal services.