Before I go on, keep in mind i am strictly talking about where I live; a small, nearly meaningless european country. I'm posting this to probe other euro folks to see if the scenario is any different

I've looked at several high name retail stores and also smaller dedicated gaming stores
Only one (Fnac) is actually selling Wii Us...

Most of the other stores don't even list it, others have the MK8 bundle marked sold out

I'm talking about over 10+ retail chains here... It seems harder to find than the Vita, which is a feat. Is Nintendo not sending enough units? Or was the EU spike bigger than we think? I'm going with the former for now.. though i have to wonder why. I do live in Sonyland (as evidenced by the fact that both PSP and Vita are outselling Wii U and 3DS, at Fnac) but still.. more exposure would probably help.

Where do you live? It says U.K. on your profile, however that isn't a small meaningless country.

Size wise it is. You could fit three Englands in just one of my state, which is Michigan. Now the UK is not a country, but a collection of countries, so I am a little confused here as to what you all are saying.

I'm not in the UK.. And don't stalk me for personal info :( all you need to know is in the original post..

I'm Italian.
in my gamesTop, Wii U I find it... but the demand is increase.

I think mainly low supply.

Are all of them going to France? xD

I'd say it's down to retailers dropping their support or cutting down on ordering stock when the Wii U was selling poorly and not having the sense to order more stock for the release of one of the biggest selling franchises in video game history.

I would imagine that they'll order more stock in sooner rather than later, particularly in preparation for Christmas and the release of SSBU if they have any sense.

Retailers are underestimating demand. Demand has been slowly growing, but after demand being so low for so long, retailers are afraid to risk anything on it. As a result, while there is and has been demand for the system, and Nintendo has the ability and stock to supply that demand, retailers aren't ordering the systems to meet the demand, because they're underestimating said demand. As the demand slowly grows and retailers begin to feel the pressure, they'll slowly increase how well they stock the Wii U, but you can't blame retailers for being afraid to risk ordering more Wii U after being burned in the past. It'll take time for retailers to regain trust in the demand for Nintendo products. This is a big factor in what we call the "momentum" of a system. Even if there's demand for a system from the consumers and supply from the manufacturer, a system is still affected by how well it sold in the past, because it is limited by how much retailers are willing to order from the manufacturer.

Unless you're in a super-tiny country like Monaco or Liechtenstein, we can't really glean personal info from which country you're in. It helps analyze the query posed in your OP.