I have been a National customer for years and will hit my executive elite status in 2 weeks. Reason for me to choose National is the quality of cars and benefit of choosing any car from executive aisle as a membership perk. At Las Vegas airport however, they always seem to be out of cars in executive and executive elite aisle. I had tons of luggage with kids and their car seats and ended up squeezing into a much smaller car than i had hoped for. They really need to keep an eye on the car demand and add cars to their fleet as the demand increases.