Walmart offers the Sony PlayStation 4 Camera, model no. 10040, for $42.91. (Amazon charges the same.) Opt for free Site-to-Store pickup to avoid the $4.97 shipping charge. That's the lowest price we could find by $8, although we saw it bundled with a $10 gift card for this same price ten days ago. This camera connects to the PlayStation 4 and acts as a motion sensor.