Getting two seperate estimated value for the same hat.

[magneta_game_hen]

Hello all. I am new to this and only looking to sell an old unusual I have lying around (no trade offers here because I know that by nature this would be prime opportunity for someone trying to screw me over).

 

I have a death at dusk conquistador, It says one was previously sold for I think 200 usd. Meanwhile the item is "automatically" valued at about 20 keys. I understand that there aren't other death at dusk cons available right  now so I can't really compare price.

 

So what is it worth?