I guess men my age (20s') shop at Abercrombie, Express and other "higher end" places.
A good place for gentlemen to find superior value on well-made jeans here in the USA is Kohls Department Stores. I'm not generally a huge fan of this store (I find the huge displays of oversized female underwear to be a little offputting..) But Kohls a) has very good sales, where you can buy a good brand pair of jeans for ~ $40 or so; and b) they carry sufficient variety in terms of brand, cut, and size, that most every man will be able to find a perfect pair.
I've never stepped foot in an Abercrombie or like store. I second the Kohl's shopping. Best place to go for jeans, I buy Levi's boot cut. Typically the ones that are the least distressed possible, which is hard these days. I found a pair of jeans a year ago, went back and bought two more pairs.