First:
Dollar for dollar, the Wii was the most successful gaming home console system this generation. It sold more units then the Playstation 3 and X-Box 360, and, most importantly for Nintendo, it made them way more money than the PS3 and X-Box 360 (actually Microsoft is in the red overall on profits from the X-Box).
It’s true that the Wii is all but dead at this point, but so say that the Wii started up bad is delusional. The Wii sold like hot cakes for the first couple of years of its existence, selling more than X-Box 360 and PS3 combined. It was the hot Christmas item of '06 and '07, and it was very difficult to find.
Now these are the facts. If you don’t like the direction Nintendo took with the Wii in accordance with your own personal tastes, I understand. But don’t say that the Wii was a failure just because you didn’t like it. Don’t lie to yourself. Thats not healthy.
Second:
To answer your question, I mostly like Nintendo’s business model. It’s not perfect, but going through the 5-6 year console cycle (instead of the 10-year Sony and MS do) with profit-making consoles allows Nintendo to be bold and different. I think the Wii U is going to do well: consumers are crazy about tablets these days, so I can see a tablet controller for a gaming system a big selling point. Of course, I could be completely wrong and the Wii U could fail spectacularly.
I do have issues with Nintendo, though. For one, they do a poor job listening to their fans. Thats something you have to do as an entertainment company these days. You don’t have to supplicate, but if you see a large number of fans screaming a message at you, you have to respond, and respond respectfully. This is one of the reasons why hardcore Nintendo fans like yourself are pissed off.
I also think they should have a classic controller alternative in box to lure 3rd party devs and consumer who may not want to use their unique controller to enjoy their games.
Third:
As far as my experience with the Wii, most of the games on the system I didn’t care for. There were long periods of time where I didn’t touch the system (in fact, I let other family members borrow it and I never missed it). But there were a few excellent games for it, and at those times I loved the Wii. Also, playing with friends was the best on the Wii, hands down. Even though it didn’t get as much gaming attention as my PC or my PS3, for $250, I got my money’s worth.
Definitely not my favorite Nintendo system by a long shot, but I’m not disappointed.