What is exciting about raw denim is that it develops highly personal wear patterns that reflect your life over a long period of time. Picture a beat-up pickup truck, or a pair of boots. You've had it for years, taken it everywhere, it's full of stories. That's the idea.
In other words, the fashion aspect does matter to people, oftentimes more than any practical aspect. (I think sometimes people take it to a silly degree...)
1: http://www.barneys.com/product/vetements-zip-around-straight...
Even the founder/designer jokes that he wouldn't pay full price for his own designs.
http://www.complex.com/style/2016/05/vetements-designer-demn...
> My friends very often can’t afford the clothes. Like myself, I wear prototypes but I don’t think I’m crazy fashion enough to go and buy those things. I’d rather go on holiday. I feel like it brings more use. Holidays are important. Holidays and quality time on your sofa.
> Even the founder/designer jokes that he wouldn't pay full price for his own designs.
I really don't blame him. A lot of it seems like jokey conceptual art stuff. Cute to look at/think about but I probably wouldn't wear.