Pretty sure 60-70 million (3DS) and 80-85 million (PS3) is quite successful. 

Nintendo's never going to offer competetive hardware, those days are over with the 1990s (GameCube hardware was largely R&Ded in the 90s). 

You probably aren't wrong. 30+ million would probably be seen as a success for most companies, any more is icing.

Sadly they will miss out on a chunky piece of the TV/Movie market due to the lack of 3G/4G mobile support, Netflix on the Go?
Something like Pokemon Go would thus also be unlikely.

As for Nintendo's Revenue. You would be kidding yourself if you don't think Consoles aren't Nintendo's bread-and-butter, however they have seen the writing on the wall and they cannot guarentee success every time they release a product... And so to erase such volatility, they need to diversify.

Microsoft has done it, Sony has done it. They don't rely on any singular market for the majority of their revenue, it is smart business sense, it doesn't mean they neglect consoles though.

Nintendo will do what Nintendo does.
With that in mind, my favorite Nintendo consoles are the ones that were competitive in terms of performance and not "generationally behind" like the Wii or Wii U.

The NES reinvigorated console gaming and brought us some amazing games for that generation.
The SNES refined it and took it to the next level. - Plus games using SGI machines to make pre-rendered art were draw-dropping back then.
The Nintendo 64 could only be beaten by the PC, Perfect Dark showed us what the N64 could do when programmed it's way.
The Gamecube had some amazing games which have aged extremely well. (Luigi mansions lighting is one.)

And they all had some of my favorite games like Kirby's Dreamland on the NES, Killer Instinct on the SNES, Perfect Dark on the N64 and Metroid Prime on Gamecube.
And they were some of the best looking and most enjoyable games in those Generations as well. In otherwords... You can have both amazing graphics and amazing gameplay and as a consumer you should always push companies to give their best.

Sure, Nintendo doesn't need graphics to make great games, but better Graphics does help in my opinion, it makes a game world more believable and immersive so you can loose yourself in it.
Nintendo often sadly needs to resort to other simpler effects such as Cell-shading or cartoonish art to hide their graphics deficit, which can look fine I guess... But it does scare away 3rd party's and that means less people will consider a Nintendo device and opt for a competitors.

The main reason games like Pokemon, Smash and Mario do so well is because... Well. They are simply the best games on the system. You can't exactly pick up the latest Call of Duty, Mass Effect, Dragon Age, Battlefield, Asassins Creed and play them.
Your only real choice is Nintendo titles, which are solid in their own right.

Plus Nintendo Platforms tend to target younger gamers and the casual Audience, which tend to gravitate to the less-mature video game franchises for obvious reason, which is also fine.

Plus power can lend a hand towards gameplay.

It wasn't untill we reached a point just last generation that gaming platforms got powerful enough to handle decent Physics calculations... Which enabled new gameplay mechanics in Half Life 2... And enabled a new amazing franchise to be Born. Portal.

We reached a point a few generations ago that Lighting was sufficiently advanced enough for Stealth to actually be a viable mechanic.

Game worlds also seem to be getting larger and more "open" thanks to the vastly increased amounts of storage and DRAM present in systems, which is again. Also great.

In the end. The only reason why Nintendo hasn't opted for more powerful hardware is simply, money. They wish to make more of it with cheaper, albeit slower hardware.

And that's fine.

Irrellevent? The Wii had people racing to stores, it was all anyone could talk about, it even ended up in old-folks homes.
The Switch? It is not generating the same kind of buzz.
Ergo... At this point in time, It is reasonable to predict that the Switch is NOT going to have a Wii-like success, which was bordering on a craze.
Again, that's fine.

The hardware is not fine for a handheld.
It is certainly inadequate for a console.

And it has to do the job of both.

I would have been in line to grab the switch before Tegra was announced to be included.
An underclocked Tegra makes me sneer at it.

I am a tech enthusiast, I don't enjoy mediocre hardware and you need to deal with that fact.

As for why I would like it in another form factor? Cost. Ditch the screen, ditch the removable controls, ditch the battery, ditch the docking mechanism...
If Ouya can do it for $99... Then it has the appropriate price/performance to attract my attention.

Will the switch outsell the ps4? Unlikely.
Will it be a bigger success then wiiu? Definitely!

Its going to do well in japan 10-15mill heck maybe even more.

The problem it has is what if switch gets a monster hunter,give me one damn good reason why capcom wont make that game for the 50+mill user base of the ps4.

You don't make a compelling point why the Switch will fail. The Wii was weak and it sold 100 mirrion!

The Switch could fail because it's not a compelling product, people already have mobiles when they're on the go. In the trailer they show multiplayer games being played like MK or the NBA game outside with friends. That looks so ridiculous, for one, the tiny screen will not be shared by more than 1 person when everybody has their own tablet. Nor will non gamer people come together to play a game like this:

I do expect it to be way more popular than the Wii U, because the Switch is also the successor of the 3DS, it's essentially an handheld as you never need a tv to play. It has potential to sell 20M in Japan alone.

The detachable joycons are gonna be something younger audiences are gonna like a lot, and the youngers are a huge part of any Nintendo handheld. Also i want to add, the way I see it this is not really made so you meet your friends out to to play together, is not made to make a plan about it, is more about unexpected situations, travels or things like that, imagine a friend watchs you playing somewhere and thinks the game is cool, you can just invite him to play with you in that moment and in that same place wherever you are, that is cool, the detachable controllers had to be there anyways, they just found a way to take more profit of them and if that's not your thing is just very easy to ignore.

You'll see in the next 6 months, when the switch news start coming to the general public, you'll see how they respond. You should stop thinking that they'll have as good of a reaction as you had.

You are a gamer and a Nintendo fan, you are not the average consumer. And again I don't mean that in a bad way, I'm a gamer and a Nintendo fan too, if I look at the Switch from my personal perspective, I like it and I will buy it, it's a great powerful handheld. But the fact that I like it and I will buy it do not make me believe that it will be a successful console.

When I see the switch, I see more ressemblance with chinese products than Nintendo's or Sony's. That's really obvious if you actually have the capacity to criticize something Nintendo makes.

If the console manages to have 3/5 hours of battery, without overheating and making too much noise being like 7 times more powerful than Vita, yes, is definitely rightas qa handheld, the size is not an argument when people this days are used to carry bigger tablets around. 

Also I dont see how is inadequate for a console, that thing is like 3 times the power of wiiu when docked.

Disagree, Switch and controllers look very modern and attractive, and of course you cant comment quality based just on few pictures, you cant comment quality if you didn't try it itself or at least read about quality.

But you are ridiculously blind probably because of the opposite reason, no one is saying Switch looks specially cheap quite the opposite, you are the exception for very good reasons, in the first set of images the worst looking of them all by far is the 2nd, Switch looks sexy the second is the one that looks like a transformer made by some chinese company, and on the other set, are you really saying to me that the Switch one does not look way better and way less cheap than the other 2? Switch doesnt look like cheap plastic like the Wii or WiiU at all, open your damn eyes.