Jim, I agree. And, to flip the coin on my analysis, leaving revenue on the table for one itinerary leaves money available for another itinerary that might not otherwise have been booked. So, one $1800 ticket that I paid $900 for means I can take another $900 or so trip, which actually has happened many times in my case. I would submit, however, this generally applies to folks who travel regularly for business; those doing "one off" business trips won't typically spend whatever is left on the table.