I have not noticed a price difference in those calibers in this area, they all bring about the same, but I would suggest the .375 being more of an all around caliber it would bring a premium in some areas....

I love the Ruger No. 1s and I have one in a 416 Rem. but I don't recommend them for dangerous game, one can really fumble with one in a hurry..I recall cutting an 06 case in half one time while closing the action and that was when I needed a loaded gun!

That said, and out of the way, I would hunt anything with a Ruger NO. 1 in .416 Rem persuasion and probably will...Using a single shot for dangerous game is just not smart, but I have never been accused of that....