I live in Colorado, so every hunting season I get to exercise my Mile-High Privilege. I enjoy the low costs for tags and that allows me to hunt several species each year. Many years, I have purchased 6 and even 7 tags for different critters. If I had to pay $350-500 for a cow tag, I would probably limit myself to only one tag a year, maybe two. I think there are a lot of Colorado hunters that are the same way. Raising the resident fees would actually hurt hunter turnout, in my opinion.
As for the cost of the non-resident tags, I feel for you. They have risen every year and no end is in sight. Thing is though, regardless of the cost, there never seems to be a shortage of non residents putting in for the seasons. Basic law of supply and demand; Charge as much as the market will bear. If the point ever comes where the cost increase causes a major decrease in non resident applications, then you will see some pull back. If more people would protest the fees by not coming here, the fee structure may change.
JMO