The industry seeks to profit from the highly selective visual taste of many world class cyclists. They therefore, look for certain novel and niche markets. Now you can get the futuristic-looking Giro helmet for $200 or you can get its functional equivalent at Costco or Walmart for $30.
It all depends on if you have adequate discerning class or taste?
PS.
Personally, I think all helmets are dorky-looking. I just wear them for safety reasons. I own several, but I wear the most expensive one the least. I'm not trying to look "cool" or make any kinda fashion statement.