What's up with these "black and white" MiniDV tapes from Best Buy?

In case the link dies, here are the juicy bits:

Sony 60-Minute Black-and-White MiniDV Tapes (5-Pack) Model: DVM60PRL/5

Each tape holds 60 minutes of high-quality black-and-white video

I'm correct in thinking this is nonsense, right? MiniDV cameras just write an MPEG file to the tapes—having "black and white" tapes is like having sheets of "black and white paper" that work for pencils but not for crayons.

Is this a way for Best Buy to prey on the snobbish pretensions of MiniDV Art Film auteurs, or am I missing something? (Not that those are mutually exclusive ideas.)

Song in my head: "Walkin' The Dog" by Rufus Thomas
Hidden band name idea: Work For Pencils