Are they trying a bit too hard perhaps? People who give out metal business cards know how cool they look when they give out metal business cards. Everyone else thinks how uncool it is to try and look that cool.

As an aside in Japan I promise that heavy stock paper and clear script will get you further. The art and presentation of cards is its own ritual.

And you can always watch American Psycho for inspiration (about cards, not murdering people obviously!)

it would depend on the business. in high end negotiations leaving an impression can be hard.

lol