The Two for One issue comes up partly because there are people who book the entry level cabins and not at Concierge who need to stretch every dollar to travel at that level. Some people watch every penny closely - even if they can afford $100,000 fares. It's not all about signing - for some people they are just mindful of their money. Ted Turner can drive any car he wants and he drives a 10 year old Ford Taurus. There are a lot of people like that. Warren Buffet as well. Do you buy two pair of shoes when you see a good sale?