Can you prove that's the maijority of the reason? Can you rule out the natural depreciation of value parts and processes go through, as seen in every console ever?

majority was an ovestatement but there is no denying the massive sals played a huge role in lowering the cost. Want proof? take an ecnomics class 

Your arguments are going to collapse on themselves when Wii U does drop in price.

Without that silly trend breaking PS2, the same could be said for Sony. Clearly having a 2 year head start over the Cube and Xbox gave it an unfair advantage, and it's success can not be counted. I can now confirm lifetime sales of the PS4 will be 60m and the PS5 will be 38m

again, that doesnt go against what we are saying.

That said, they are also among the most stubborn, out of touch, and technologically lacking (online features and hardware).

Like a samurai in the 1800's failing to adapt to the rise of gunpowder.

I'd still call it a trend.  It's not a single reason and a straight line trend, but multiple headwinds compounded to depress sales in each region bit by bit.

The Wii U still has the same headwinds, and more (Japan playing less consoles, high price for Nintendo, low performance vs competition, delayed 1st party, worst 3rd party support in memory...).

That's doesn't  make any sense that the wii u is more expensive to produce now than before as time pass ...as in all electronics as things get older the price decreases because the electronic equipment used becomes outdated or there is a better replacement ...example blu Ray is much cheaper now because the components are less expensive to produce  ....why do you think companies use  price cuts at certain times because production cost are lower the wii u cut it's price from 350 to 300 because production cost went down a little so it allowed them to cut the price and because they can make up the lost on  software ....you are forgetting console sales plays a small part in the bigger picture it's the software that matters ....the wii u can only have 6,000,000 consoles but if one console owner buys 4 or 5 pieces of software ....nintendo makes a profit ...

it does make sense. Nintendo went from producing 3m for its first quarter to 3m in its next 5. They werent profiting at the other price point and more production and with a 50 dollar cut, slower production, and weak game sales they mos likely arent profiting.

I have never said that Nintendo systems magically stay the same price or increase.  I said that certain components do not see significant price reductions, and that the cost per unit of 2.8m Wii U's is likely higher than if they were producing 9m.  In fact, I was pretty explicit about what things I didn't think would see their prices fall, I'm not sure what your obsession with magic is.  Also to be clear, when I said "The disc drive, power supply, and manufacturing costs are probably similar or potentially higher than they were in 2006."  the context of "manufacturing costs" was the cost of assembly.  Wages have been rising in China, and despite increases in efficiency, I doubt those costs have been going down.

If you had bothered to actually respond to the points in my first post you would understand that.

The article actually partially supports my point as well.  Wii production had ramped up significantly between the start of production and 2009.  In comparison, Wii U production has likely dropped (the first quarter of Wii U shipments still represented 52% of total shipments after more than a year), which would put them in a worse position when negotiating prices.

It also depends on what currencies he was expressing that data in.  The yen appreciated quite a bit in that time frame.  While the price in yen for manufacturing might be down, the price they sell it at might be down as well.  At the peak, a $250 Wii was bringing in 30,875 yen in June 2007.  By Jan 2009 it was bringing as little as 22,283.  That's a 28% drop just from currency fluctuations.