You can go to Graff and buy a diamond that's flawless. You aren't going to be able to buy the same diamond at Fortunoff, but it's still a diamond you can enjoy. If fashion can allow you to have the Chanel mystique through a lipstick, then why shouldn't art allow you to have that through a sweatshirt that says 'Cremaster' on it?
I remember walking the dog one day, I saw a car full of teenage girls, and one of them rolled down the window and yelled, 'Marc Jacobs!' in a French accent.