"It is not just those who built the QE2 who look on the ship with a special fondness. In an odd way, it is as though the boat manages to unite the classes, even though it represents what divides them. One reason it can do this is that the cruise ship has for a long time been the ultimate symbol of luxury, but at the same time it is something that most people could aspire to enjoy as a once-in-a-lifetime experience. People started work or got married with dreams of setting sail on a cruise for their retirement or ruby wedding anniversary, and often that's just what they did."This week's Herald column.