Wow, its a good thing that Delta is NOT buying NWA, so the 10 planes that have the logo lights can still be lit. I am not a believer that not using a light will save enough money to make it worth it. Horizon Air starting making their pilots not use the position lights during the day to save cost. Talking with the Lead MTX Tech....his quote was that there was no saving benefit. Personally, I will spend the .02 cents an hour to illuminate my aircraft as much as I can to help prevent a collision.