Marketing luxury goods is hard. As soon as you charge more than another brand for what is essentially the same product on the surface, you lose the biggest bargaining chip of them all: price.
You have to persuade people to choose your product for reasons other than its price tag, i.e. the quality, its rarity, the way it makes you look socially.
This is the challenge Bacardi faced when trying to come up with a campaign for its Grey Goose vodka last year, and the resulting campaign won it a Masters of Marketing award under the Luxury category.