I really have no idea whether this in fact is a real deal, but fuzzy memory says this was in discussion before... I've bought from B&H and saved $$$, free shipping with Purolator ground. This may be one of those GoPros they built far too many of and now need to sell at a reduced price. Maybe GoProers could comment yes or no.
https://www.bhphotovideo.com/c/prod...71026&utm_content=Retail&utm_term=HERO4-Black
https://www.bhphotovideo.com/c/prod...71026&utm_content=Retail&utm_term=HERO4-Black