So how has the 3DS reached 70million then?
Do you really think everbody of the owners of those 70 million 3ds users are hardcore fans? Same goes for PS4 maybe like 20% are real Hardcore fans of Playstation. But a PS4 is just much more appealing console in every way for someone who isnt a kid who wants a console to play games, besides the portability that switch offers.
A question to you : Why did the Wii U only sold 13 millions?