The ones.that sell are there like Lego and skylanders. The rest not so much.

I agree with this. The Wii U is actually even too weak to support the Gamepad (or multiple) in a truly meaningful way.

It shouldn't be too expensive, just not worth the extra profit most of the time. 

I disagree with the too young part.
Most Wii U owners are in fact older than 18. But, the Wii U audience that do not own another System and buy 3rd party games is pretty low.
I'll take myself as an example, own a Wii U and a PC. I try to buy 3rd party games that I am interested in on the Wii U, but I'll buy it on PC if the value is better (e.g. Mass Effect 3 (+DLC) on PC, NFS:MW U on Wii U).

For most genres it is too small.

I don't know about that, feels more like 3rd parties not advertising the games that compete with NIntendo games as much. They don't try often either.

You might lose money, make a little or have a surprise hit and make loads.
You'll lose money if you just send out a game to die (I'd guess Watch Dogs is an example. Was Watch Dogs profitable on Wii U?)
You'll make a little money if you make a decent port.
You have the chance of a surprise hit if you take a big risk and make a game that is more suited to the Wii U audience.

Remember the Gamecube? Did it sell like gangbusters when they dropped the price to 99,-?
It didn't, so I'd guess that lowering the price of the Wii U wouldn't help it a lot.

Stop generalizing. There are games that do seem to pay off.
Why else would the Wii U still be getting games like Skylanders, Disney Infinity, Lego Games or Just Dance?

well yeah but you can't produce everything.
Apple could manufacture calculators, pens, playing cards, brew beer or cultivate real apples, sell that and make a profit. There would be enough Apple fanatics to buy that stuff (and honestly you could replace Apple with pretty much every bigger company). But why waste the amount of resources when you can earn much more money with the next iPhone, MacBook etc. ?

except a lot of games got later releases on sony or ms consoles with no marketing and bugs, but had good sales

this just proves 3rd parties don't hate nintendo, they release what they expect will be profitable.

I believe a GTAV port would sell decently.  If they can run it on PS3 and 360 then it shouldn't be too hard to port it to the Wii U.  I suppose I'll just get it on the PC eventually and that is what I get for not buying Bully on Wii.

that comparison makes no sense. Why not compare the last AC game to release on Wii U and PC at the same time? Black Flag flopped on Wii U so i dont know where you are getting AC has a fanbase on Wii U it doesnt. .26mil is abysmal for a main AC title, hell the Vita one did better and that was a side story. Black Flag did .58mil on PC and thats JUST the hard copies thats not counting digital which we already know most of the sales for PC games come from there. I think 75% so this game pass the mil mark on PC alone. So yes AC does better on PC which is why it gets support. Not to mention its a freaking PC which most devs (especially western ones) use to develop games before they even work on the console version anyway. 

Dont know what Watchdogs has to do with anything that game would have flopped regardless, i could give a list of games that were late ports that sold well on non Ninty systems but it would be ignored.

THis, people dont like the answers they get, especially when they are true. Funny thing is neither of these guys actually try to debunk any of the points made

considering that game had a glitch where you couldnt finish it, you werent missing much

at least its still funny to watch this

i doubt nintendo will ever get any real 3rd party support. it would be ridicoulus if they do the same video for the next console, nobody woud take them serious.