A new, cool plane is way more expensive than a Ferrari. How many Ferrari commercials do you see? Cirrus has some great videos on their website and does print advertising. TV is too expensive.
Even the small advertising that Cirrus does draws flak. You have to say "Flying is very hard and you probably aren't good enough. You can't plan trips or you will be a bad pilot. You need to fly a 40 year old plane so other pilots won't make fun of you. Still, please buy our product." Otherwise, the red board will light up with posts about how irresponsible the company is.
If you want to add people to aviation start with the flight schools. It used to be there were elope hanging around, catching a ride, hangar flying etc. it was an atmosphere of excitement with people who lived flying. Today it is a cold business with run down planes and instructors more interested in getting hours for thei career than the excitement of flying. As a data point, today few pilots get over 200 hours. Most quit. Once you get your license then what? I was fortune to find a flying club with seasoned pilots who helped me get into trips via GA.