Don't know, don't care "Plain" jeans, at least for me, are "utilitarian", rather than any sort of "fashion statement" or whatever.
So i'm not partial to any particular brands - as if they're not all made in some sweatshops in the (more or less) Far East...
That being said, even $50 for a pair of jeans is kinda pushing it, but that's just me.
On a side-note, i'm not a native, and most of the clothing i've bought here have been t-shirts at the (relatively) few tour-shows of some of my favourite bands
I’m not too fashionable myself, but I have been loyal to Levi’s for many, many years now because they have aways been reliably good — the quality and the fit continue to be good. I know that if I buy a Levi’s 527 in 33x30”, it’s going to fit me. I know there are cheaper jeans that would also fit, but having to restart the fitting process again... meh, I’m lazy.
Similarly, I’ve been very partial to Puma shoes, because they have proven to be better for my feet than other brands I’ve tried.
What I do find highly amusing is how a given brand can be utilitarian in one place and fashion in another. Case in point: Carhartt. In USA, where it’s from, it’s considered purely a utilitarian work clothes maker. You buy them because you need durable clothes for your job on a construction site, on the farm, etc. Meanwhile in Europe, Carhartt has been a fashion brand for years, with high street boutiques and everything! Americans always laugh incredulousy when they see a Carhartt shop the first time, because it’s so preposterous! “Lumberjack chic” a friend of mine once said!