I don't hate Nintendo. It's simply that they are adhere to outdated business practices and assumptions which leads them to be too conservative and undermines business potential while also annoying if not maligning their consumers, despite themselves. And on the issue of the Wii, that was also a Nintendo console that was outside of mainstream video game competition. It is the poster child for that. It is like having McDonald's and Burger King compete, and Nintendo is Taco Bell. Or Pepsi and Coke compete, and Nintendo is Dr. Pepper or Root Beer. That is where Nintendo is: a niche outside of the major competition, but with economic success potentially comparable to the competitors while not trying to compete directly with them. If Nintendo attempted at this point to directly compete against Microsoft and Sony on their terms (and that is important: on their terms; not Nintendo's but Sony and Microsoft), then it would lose. Somebody would lose in that scenario and go under, and given market conditions, it is likely to be Nintendo. We saw this already with Sega when Sony entered the game console market. Sega was weak and went under. Sony and Nintendo were the two competing brands, and Nintendo allowed Sony to take more and more of a role in the market as the mainstream gaming company while Nintendo banked on intellectual properties. Then enter Microsoft, which took up the market share that Nintendo had ceded in terms of mainstream gaming outside of their Nintendo cartoonish (no offense meant by that) brands, and Microsoft became the direct competitor to Sony, while Nintendo was driven to forge itself in it's own direction.
In the marketplace, Nintendo has forged itself independently in terms of gaming. A Nintendo game is very different from what you would tend to find on Playstation or X-Box. It is a parallel universe of game style. Sony and Microsoft for their part largely cede that position of "game" games to Nintendo. And for the same reason: they would have a hard time competing against it, so they go with a distinct style of gameplay and compete between themselves based on that. Nintendo has nothing to gain by trying to compete directly with the two. It would be different if they were in a critically weak position, as Sega was when Sony came into the market. However, Nintendo would be playing on their terms, whereas as it stands, it is pursuing it's business practices and place in the market and competition on it's own terms. It would be as if Taco Bell decided to make hamburgers, or Dr. Pepper started producing a Cola brand. Why? The other competitors have all the market strength in those areas and customer loyalty, recognition, infrastructure, etc. It will be a waste of money, and will undermine the strength of the core product and business strategy by siphoning away time, money and resources on something that will not succeed better than the existing way of doing things anyway. In the market, a company positions itself where it can succeed. It is not based on nostalgia, or "wouldn't it be nice or interesting?". There are serious economic considerations. Nintendo has positioned itself where it will do best.