Cabela's offers the GoPro HD HERO4 Black Edition 4K Action Camcorder, model no. CHDHX-401, bundled with a $75 in Cabela's Bucks for $499.99. Coupon code "4JOLLY" bags free shipping. Assuming you'll use the credit, that's tied with our Cyber Monday mention and the lowest total price we could find today by $75 (outside of the mention below). It features 4K video recording, up to 12-megapixel photos at 30 fps, waterproof housing (up to 131 feet), WiFi, and Bluetooth. Deal ends December 17.
Note that it's currently on backorder, but still available to purchase at this price.
Shop a lot at Amazon? They offer it bundled with a $50 Amazon Gift Card, Lexar 32GB Flash Memory Card, and a GoPro Headstrap Mount for $499.99 with free shipping.