Yes they do tend to bring a premium, in my opinion an excessive premium, but this coin is special. Almost ALL of the SS Republic coins you will see show evidence of saltwater corrosion and the result of harsh cleaning to remove the corrosion and deposits (often looking like a wire brush or brillo pad has been taken to them, hence the reason I think the premiums are excessive. If they weren't SS Republic you would be lucky to get $50 for them even with near MS sharpness.) But this coin seems to have escaped that fate (though I still think in the image it looks cleaned)