The thing is? I have some costco brand jeans I bought during the first dot-com that I still wear. they were under $15. Actually, at the same time I bought a bunch of designer jeans. The designer jeans all failed (at least one of them catastrophically... dramatically ripping the crotch wide open as I lifted a server in front of something of a crowd.) within a year of purchase.
My experience has been that expensive things are not always better. In fact, expensive clothing is usually designed for rich people, who don't need to lift things or trace cables through crawlspaces, and who will want clothing of the new style next year anyhow.
Clothing designed for working people is usually much more durable. And yeah, you can sometimes get increased durability by buying something more expensive within that sector? but the nicest dickies brand work pant is on par with the designer jeans they sell at target, price-wise.
So yeah, in general? if you are selecting for durability in clothing? the price signal is actually the opposite of what you want to look at.