Is it wrong to like sequels when the designer knows how to make a series whose game-play that doesn't need to be fixed yet the designers still adds minor tweaks in the game-play to keep it a little fresh? And the numbers show that the fans of popular Nintendo series don't mind the sequels and want more.
There's nothing wrong with sequels if people want them and they provide profits.
If your problem with Nintendo is their current IP's or the new ones that suit your gaming preference (Wonerful 101, Wii series, Nintendo land, and more), then what you want is another game system or Nintendo to expand and hire other developers that make game genres that suit your need.
Nintendo can let their experienced designers develop these new series and allow their younger designers take care of the older IP's, but some of Nntendo's old IPs maybe too valuable for these young designers. And if they do this, why would third-party developers need to exist? I'm pretty sure Nintendo's Skyrim, Grand theft Auto, or Call of Duty will not only be better but also more appealing to non-gamers and gamers who usually aren't interested in these games.
