Miyamoto says Nintendo didn't focus on online because it "would have limited the size of the audience that could enjoy those features"

[VGKing]

THIS IS ME DEFENDING NINTENDO.

I had dial-up through most of PS2s life cycle). So naturally Nintendo didn't put online as a focus with the Wii and by the time it released, it was already too late to do anything on the level of PSN or XBL. Considering the direction the Wii has taken Nintendo people are actually lucky the thing shipped with built-in Wi-Fi.