This is an eBay daily deal featuring a GoPro HERO3 Black Edition for the cheapest I have seen in a while. It's a great deal for a solid, waterproof action cam and comes with a wi-fi remote, which normally sells for $75. This is a featured deal on eBay, so it is expected they have enough in stock for this to be a legitimate deal.
Professional 4K Cinema 15 fps / 2.7K cinema 30 fps / 1440p 48 fps / 1080p 60 fps / 960p 100 fps /720p 120 fps and more video capture
12MP photo capture with 30 fps burst
Wi-Fi Remote Compatible (included)
GoPro App Compatible (FREE)
197'/ 60m Waterproof Housing
Assorted mounts and hardware included for attaching to helmets, gear and more