A bennefit not yet mentioned is reduced
oil aeration. This refers to the percent of air that is entrained in the
oil. Under 2% is fine. At sustained high rpm it can get much higher. After that it starts to cause hycraulic lifters to get spungy which leads to valvetrain instability, valve bounce and possibly failure. It also reduces
oil pressure but generally not much until there is no oil left at the pick-up. I would recommend a windage tray to anyone who plans to drive their car hard for even brief periods, especially if they have hydraulic lifters.
Just thought I should share.