What are clamp cases worth?

A seller is selling a relatively new game but its hella expensive. It comes in a clamp case and I was thinking of asking for a discount. I take the game, insert, and instructions - he keeps the clamp case.

What dollar value would you put on such a thing?

hello?

$25... thats the standard rate for a case in mint condition... Id buy them if anyone was selling.

Hi svenask,
I think the new school boxes are worth $25 also. I would pay $25 for a new school box.