Why no PS PLUS type service on Wii U?

[bunchanumbers]

Kerotan said:

bunchanumbers said:

So how is that good? Aren't you just proving my point? A premium service isn't going to get more online multiplayer games made. It'll only hurt the game sales that Nintendo already has.

my point is you don't need a ps plus type service that only gives away games with online. get me now? 

But how does this service encourage developers to make games with online? I really don't see how this service encourages 3rd party developers to make a game for them. Or how this service will encourage them to develop for Wii U in general.