Since we have 512GB µSDs the milk bottle would go from 1.6PB to 12.8PB, all other results need to be multiplied by the 8 times increase in storage density...
Not really a new business venture, sneakernets have existed for a long time. On Cube having someone check by your house with a few terabytes of internet to copy to your disk is a thing.
And companies regularly have interns carry harddrives between servers or even have someone drive it between cities because it's simply cheaper to pay for gas and driver than to pay the transfer over wire. And usually faster too.
https://what-if.xkcd.com/31/