These new shinny cubes

Image from First Majestic store

Hi Steemians

Got notified that the First Majestic Store have new product in stock.
Just wonder what the community think about the First Majestic silver cubes. At $280 for 27 x 10g that is $4.8 over spot price per cube at today's price. Is this premium high given say a panda is around $6 over spot and bars demand much less premium at $1.5 - 3 for the non-mini run stuff.

Do you think this is good investment or really should stick to the common bars and rounds for lower premium.

Thanks in advance for your input.