Does the Wii have its problems? Yeah. Every console does.
Does that mean I care? Absolutely not.
Out of this (home console) generation, the Wii has the most of my playing time. Currently I'm Wii60, but my 360 hasn't been played much. AC was disappointingly mediocre. ME disapointed me by being more of a shooter than a RPG. Blue Dragon disappointed me too, but I'll try to get back into that. I'm not a huge fan of shooters, thus I have absolutely no

ing clue why I bought CoD4 (which I've barely played) or Bullet Witch (which is still sealed). My top 360 games right now are Crackdown, EDF 2017, Wartech, Dynasty Warriors Gundam and Eternal Sonata in that order. There hasn't been much else for me to like. Granted, I'm still waiting to get LO cheap. The RPG announcements did help, though, but its not a whole lot.
The Wii has so much more different experiences for me to like. Super Mario Galaxy is the first 3D Mario I played to beat. (I didn't play Mario 64, because 3D actiony stuff jarred me back then. Right now I'm more than willing to go back to it) Blast Works is a shmup fan's wet dream. I just started Opoona and I think it's great. No More Heroes captures my over-the-top needs. Brawl has any fighter needs that aren't covered by the PS2. Mario Kart really is the only racer I'll play. There are other games that are just simply fun for me.
That's just it. The Wii is simply fun for me. I only got my 360 to be able to play the next-gen RPGs that won't make their way to the Wii. I couldn't give a shit about online play; hell, my 360 is only connected to the interwebs for the marketplace. But right now, I hardly touch the 360. The Wii satisfies my needs. It could use more RPGs, but that's what my gargantuan PS2 RPG library is for. One day I'll beat them all. Maybe.
So, is the Wii a gaming failure? Hell no.
[quote name='tayaf69']Does Nintendo have ANYTHING worthwhile over the next year? To me, I would say no.[/quote]
It's partly because they haven't announced anything. Iwata's currently philosophy is to not announce something until its reasonably close to completion. He doesn't want another Twilight Princess situation happening.