Hahaha! Yes, it's underrated and a key ingredient of Dijon mustard. If you're a carnivore or pescatarian, it's good with chicken or fish. In this country, tarragon vinegar is hard to find, so when I can, I will make it for myself, and sell it at the market.
Oh, and French onion soup is not quite the same without tarragon, especially if you make a vegan version.
BTW, did you see the white rafters?
Now I have cravings for French onion soup with tarragon....