You can buy USB flash drives for $2. People don't refrain from handing over flash drives because they're expensive, they do it because they have a reasonable expectation that you're able to immediately copy the data, or that you can receive it over a network.
The death of the floppy didn't kill sneakernet, the rise of portable networked computing did.
The death of the floppy didn't kill sneakernet, the rise of portable networked computing did.