You could also just limit people to 1 doe tag.Probably more valuable from a herd health standpoint.
I am where you were seven years ago, so I can agree with the general sentiment in your post. I just think does are low enough as it is that there's room to raise the price and not put a doe tag out of reach for Joe NR.
Plus naking doe tags a little pricier might just make people less likely to throw two doe apps on top of their buck app, meaning hopefully less pressure on doe tags for the guys who are brown bagging it.
There are plenty of expensive tags for people to throw money at, tons of tags and hunts over $4000. Not many for NR under $400 for a hunt.