Maybe, maybe not. The longer-lasting but expensive stuff might not be available in styles you like, for instance. So, for example, what good is a long-lasting shirt if it looks like something only your grandfather would wear?
People are never going to "get past fashion". People who have any money at all have been worried about fashion for millennia now. The only people who didn't were people too poor to do anything but worry about keeping themselves clothed with whatever they could find.
The outfits from these places are almost always based on designs from more expensive fashion designers. I would be surprised if you couldn't find an equivalent or nicer made with first world labor and nicer materials. However I would not be surprised if it cost literally 50x more than an HM equivalent.
