Why pay $200/mo for cell service when companies like Mint and Cricket exist? You could be paying under $200/yr for that alone.

Haribo Sugar-Free Gummy Bears

This is covered in the technobabble of the show. The gate is one way to anything bigger than radio waves, so the camera would see nothing until enough of it had dematerialized for the rest to be sucked through.

Quick removal isn’t a big concern since the drive is read only. You might crash anything with an open file handle, but you don’t have to worry about data corruption.