The holiday deals definitely make the other consoles more appealing than the Wii U. Of course, the normal prices ($399 for a PS4/XBO and $299 for a Wii U, at least in the US) doesn't really help, either. That's only $100 more for systems that are a big leap ahead of the Wii U in terms of power (especially the PS4), and you get all the big 3rd party games, unlike the Wii U. Which you can't really blame the 3rd party devs/pubs, as for the most part, their games just don't sell well on the Wii U.
Of course, it's pretty apparent that Nintendo is focusing on profit over marketshare. I fully expect them to drop the price to $249 late next year. Unfortunately for them, Sony and MS will also be dropping their prices. This will once again make the price difference $100. Or worse, $50 if they decide to drop to $299. If Nintendo wants to recover from their situation, even if only to start selling decently, they would need to drop it to $199. I don't think Nintendo can afford this, though.