"Nintendo's online offerings are free (and somewhat limited) as of now, but that might not always be the case. According to statements from Shigeru Miyamoto to Edge, Nintendo is still considering the nature of its online business.
"Probably the other thing that we are desperate to realise is the core [online] business structure," Miyamoto said. "Do we need to demand customers pay monthly fees to enjoy online activities? Or give an online subscription that is free of charge, but then offer something extra for people that pay, so that they get some extra value? With these core business strategies I think we are less active than we should be."