There is one fallacy in this logic. Games aren't the only things that generate hardware sales. By the way it isn't a lack of games that is hurting the Wii U, but I understand why some may want to think that. After all that is something that can be corrected in the fullness of time. The reality is however that the console launched with over thirty titles, and it has a decent number of good games to its credit. Meaning that there should be more then enough to satiate real demand for quite some time. If it was only a matter of having games the Wii U wouldn't be performing as badly now as it is.
The Wii U is suffering from a problem that the other two are less likely to suffer from. The Wii U is a victim of bad hardware design choices, and even poorer implementation choices. At worst it just isn't as good as consoles that are already in the market, and at best it is merely matching them. Meaning that there just isn't a justification for the extra coin as far as most consumers are concerned.
The other players aren't likely to make the same mistakes as Nintendo has made. Their hardware is going to be significantly more capable, and both platforms are likely to be far richer in the feature department. At least in respect to Nintendo. I am reasonably certain that Microsoft will be extraordinarily deep. I am not too sure about Sony. I need to see more of what they plan to support with their operating system.