Board Thread:General Discussion/@comment-1824272-20150217221958/@comment-26016568-20150218185730

Project Aces does so because they know that people will spend more when they do an important tournament, so they discount the fuel so that players don't have too spend as much, this way Project Aces benefits from having more fuel bought from them, and players benefit from getting more fuel for less and the research & development that comes with the aircraft tree. Also...I'm a girl :P