If you break it down to the base components, cars are just metal objects. It doesn't (or shouldn't) matter how you buy it, but try telling that to a shy person who's more comfortable behind a computer when a pushy salesperson is talking his ear off. Or a social person who's losing his patience with trying to buy a car online. Or a mother who's been stuck at a dealership for three hours with a three-year-old that is losing its mind from boredom. Everyone likes to buy cars their own way and CarMax says it offers the options that work for you.