You have to be careful setting expectations based on products that are made in other countries with extremely low labor costs and with corners cut to meet the pricing demands of American consumers.
There's definitely a massive difference between my Gap jeans and my Momotaro jeans in terms of material and build quality. However, there's also a massive pricing differential.
I've noticed that they wear out quickly, especially in the crotch and around the back pockets, but I don't know if it's the jeans themselves or if I'm just hard on them. I can't remember how much wear I got out of previous buys/brands to compare. I've also tried the $20-25 Levis from Walmart & Target and found they also wore quickly in those areas.
So I'm wondering if there is a difference between the Walmart/Target jeans and those found in fashion/designer stores. Anyone have experience with the two that could offer some insight?