I can understand wanting to be frugal. However, think about like this. Much like an expensive rifle, an expensive pair of pants may offer you better fit, style, and quality that may last you far longer than 5.11’s. Kuhl is a quality product that is easily worth $90. Are they right for everyone? No. However, don’t immediately reject the opinion due to price alone.
I’m former military and now in other government employ. I have been issued a lot of 5.11 products over the years. To me, the fit, quality of manufacturing, and design do not hold up. Simply put, for something I’m going to be wearing for 8-12 hours a day, I won’t wear them even if issued for free. I don’t skimp on shoes or clothing, as they will significantly impact my day far more than much of my high end gear, like a rifle. My Kuhl, Patagonia, and Outdoor Research clothes have offered me far longer service life than any 5.11 product, are more comfortable, as well as fit and look significantly better. If cost is that much of an issue, you can often find online sales that will get you in the ballpark.
Anyways, best of luck with your search.