I don't think it's safe to assume the $699 price tag is the same as the unit cost to Facebook. They'll charge whatever they can get people to pay for it, plus t

I don't think it's safe to assume the $699 price tag is the same as the unit cost to Facebook. They'll charge whatever they can get people to pay for it, plus they have a vested interest in portraying ad-free prices as unreasonably high.