Lots of folks would drop a load in their shorts if they knew how much I pay in out of state fees every year to kill other state's critters....

$500 is a lot for a cow, but if a guy wants it bad enough then all is well.
Bull tags in some states are north of $1000 and I'd gladly paid that for the right tag...in addition to the license and the absurd number of stamps and permits they'll nickel and dime ya with. If it gets to being too much $, hunt something or somewhere else...I do think the higher a price gets, less and less people will be applying for said tag, as the law of demand comes into play. Sometimes it takes a big price hike to see that effect though.

I know a resident here that regrets applying for Wyoming bison this year because the $414 tag is just so damn much money...and yes he pulled a tag...
I, as a resident would gladly pay the non-resident fee (which is over 10X that amount) for that bison tag if I had to, and have been putting in for a hell of a lot longer than he has.
It's all in how much you want that tag...