Convenient, lol. 

Nintendo's biggest problem seems to be they don't advertise well to the core audience and rely on their fans to generate buzz. The primarily reason Mario Kart 8 has helped revive Wii U sales has to do with it being Mario Kart and a good to extremely good entry into this particular well loved sub-franchise that only get released once in system's life time.

Nintendo seems to have gotten better if the E3 Direct video, the numerous treehouse videos and their sponsorship of EVO are anything to go by but time will tell. Hoping they don't just throw out Bayonetta 2 and Devil's Third like they did with Pikmin 3 and Wonderful 101 last year but the fact is they are likely to do so.

I think ms will bow out after this gen. All nintendo need to do is not blow through the stock pile and everything will be cool again

There is room for three consoles. Nintendo just doesn't have the third party to ensure most of their consumers will stick with them.

Run out and buy them? No. But yes I would buy Mario and Zelda and Metroid and Yoshi etc. if they were on my console of choice. So would a lot of people. Most of us love Nintendo games just not enough to sacrifice access to the larger ecosystem of thrid party IPs or dropping another $300 for a second console to play those games.

There is room for 3 consoles and there being 2 other options is the least of Nintendo's problems. Wii U has several challenges, but they are challenges in terms of its own design, not that there are multiple alternatives. One alternative - PS4 - is enough to sway buyers away unless Wii U presents a good option in and of itself.

The one that is actually suffering the most right now is XBOne, just because the content is too similar to PS4 while being more expensive and/or weaker technically. One needs to do more to prove it's not a redundant product.

Wii U is not a redundant product, it's just one that a lot of people didn't seem to want. Some recent releases have helped and future one may too. Combined with a price cut the product may find a place. But two alternatives is only a very minor issue. If there was only PS4 Wii U would have a similar if not greater challenge.