Sony and Microsoft were on the same philosophy until last 4 years back. When Microsoft losing the war, Microsoft change their target from selling hardware first and Service and Software last to Software and service first and hardware last.
I don't know about Nintendo, Nintendo always has equal target between hardware and software, but i do agree they don't care about service at all, even on minimum base they simply won't evolve .
Sony eventually will also focus on Service , but for now they are more traditional but keep on delivering service as well.
Sony is the most ballance compared to all.