Well first of all, your comment about innovation is idiotic and unintelligent. Only a fool would think that innovation relies completely on a different concept entirely. That is a pathway for originality, but only one. I know quite well that you can pour new ideas into used concepts, thereby making them better and more interesting. As for the other systems, it's not as if the they're showing splendid new franchises (new GTA game, Halo and Halflife 2, Doom 3, Jak and Dexter 2, Ratchett and Clank 2, etc.). As for that solar panel thing, that sounds ridiculously annoying, and it seems like it'd be full of flaws. If not, that seems like a very good idea. Besides, I don't know why you're complaining about innovation if the games are fun (not to say they aren't innovative). Innovation is only worth so much, and that says a lot coming from me.
As for LAN, that's not an Xbox original. I think computers have had that for a while. In that case, Nintendo was being innovative, it was trying to make the game more fun. You may not have realized it yet, but video games are for fun. Really, I'm not lying. And believe it or not, innovation is not the key source of fun.
Well, that's just my take on it. I don't want to sound like a blind, Nintendo fanboy. I just want to make a point. I too buy games based on how innovative and interesting they seem, but that's only a factor. I don't think you should chase that factor and pretend it's the most important aspect of a game. As a factor, however, I've found that Nintendo is the most innovative video game company ever to exist, now and then.
No, I don't think it's a selling point, but you must admit it appears to be innovative