When I worked for BA res' yes the tickets were reduced at the sales. A booking class was created for the sale price generally W class. Whether you'd get the same price or less is a gamble with Revenue Mangement who look at how the flight is selling so yes at later time the flight maybe cheaper than it was at the sale if it looks like it will fly empty. Whether you'll get a third party bucket ticket again depends how the flight is selling and how many seats that airline has given the 3rd party. The 3rd party also has to sell its allocation so it can sell tickets at a loss. Airline tickets are mine field and fluctuations are daily.