To what extent do studies or indices or whatever indicating that prices of goods have dropped under liberal economic & trade policies of the last few decades factor in quality of same goods? I'm not sure decent goods have actually dropped in price, and wouldn't be surprised if some have in fact become more expensive, and suspect that extremely crappy goods that didn't exist at all before account for much of the alleged reduction in prices.
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.