Really is inexpensive compared to other things. I figure I fish an average of 80 days a year. When you divide the license and tag by 80 it's not much. Now you want to talk expensive...let's talk about the money I spend on gas those 80 days of the year.
I guess it all comes down to what is it that you care about. If fishing isn't your thing then I'd recommend not spending the money on a tag. Myself personally, fishing keeps me sane. It is my therapy. Without it, I would injure people. So I throw a ton of money into it, because it's what I love.