Microsoft has shown how it's done, at this point. Eventually, their entire library across every generation will be made available, that's absolutely insane. I know, especially in Nintendo's case that that would be incredibly difficult unless they added a cart reader of sorts, as well as motion support and second screen for the Wii U stuff that used it-- but the digital option for a good portion of their history. Especially when they have something like Smash, like, that game alone is advertisement. Wouldn't it be nice to be like "Damn, I love playing Ike, but I've never played his game. I'll grab it on the eShop later", or, "All this pokemon stuff is making me nostalgic, I really wanna go back and play some" etc--