$1.00 per louver is the price they charge here too. You have to remove all the paint from both sides before it's punched. And smooth out the sharp edges with a file.
I don't like the roller type of louver press. If you buy those dies you still need the bead rolling machine that they're mounted on and they won't work for most hoods.
I'm thinking of buying a set of stamping dies and using my milling machine for a press by mounting a hydraulic cylinder to the back side of the turret.
AL