I have my tires set at 45 PSI. Door sticker says recommended 40 PSI. I would think that this recommendation is for ride comfort as well as road contact (traction for acceleration and braking) as well as proper wear over time.
I am thinking of increasing them to 50 PSI but I am concerned about all of the above. Has anyone running higher pressures worn out a set of tires yet? What are people seeing with regard to wear?