Well, I admire your bravery, Mr. Nintendo.
Having said that, WHAT'S NOT TO GET?! You probably have the technology, you have the example, why not embrace it fully? Look, I was against online gaming when it first came out. but I've come to accept it (Not love it, but whatever) and I must admit it's...well, a must-have for consoles now. We're just too used to it and too into it right now to turn back.
Nintendo would be smart to just plain copy Sony's and MS's idea at this point. Get a username, connect, chat with buddies, invite them to your games. Then try and refine that already-working idea for the next console. Don't make me have to talk to everyone in the universe if I only wanna play with ONE friend, don't make me uses codes or...whatever the hell is that they plan on doing now, don't make me GUESS if my friend's online.
You know of Chat Messengers? Yeah, basically take that old-as-time feature and shove it into your system. It would be a thousand times better than whatever you're gonna release, trust me.
It's not that hard, Nintendo. No one is expecting you to put Sony and MS to shame. Just...plain do it right and maybe you'll attract more people.
(Yes, you can keep your rules about cuss words and safety and all. That's actually...not that bad, I guess)