Mrs got me a Hero 8 Black for xmas. Way more than I need but man, the picture quality is amazing. Depends what you want to do with it. If its for worst and giggles, you don't need the latest and greatest. I use mine for snowmobiling, battery life sux in the cold but Amazon fixed that...lol.
One thing about the gopros, is the extras seem better than the copycats. I mean the software, apps for your smartphone, etc.
IMHO, its almost always best to go with the original.