Nobody wants to play asymmetrically. In gaming a player should have an advantage over others (unless they all specifically decide on it).
Originally it was supposed to support 4 gamepads - which makes sense. They know multiplayer gameplay should be balanced in that way. Then they realised they'd screwed up and it'd only support one at full power. Then they said 2 slates is perfectly possible (with a frame rate drop from 60 to 30fps, which is acceptable tbh, but slightly disappointing).
I'd say widespread support for games where two players use gamepads is inevitable, then. Or would be if the prices weren't so ridiculous.
So for a console with one game and a second controller:
£150 I'm all over it.
£200 Tough call, but I'd probably go for it.
£250 Unlikely, but still possible.
£300 No chance.
£350 You're just being silly now.
£400 Stick it where the sun don't shine. No, really - this is the real price point? Nintendo's lost the plot.
(That's guesswork, based on £230 for the basic bundle, £120 extra slate, £40 game, and I've rounded up a tenner.)
Bear in mind we're talking about a console that's barely more powerful than the 360 and ps3 (yes, Harv, we know the GPU and RAM are decent, but other aspects are arguably weaker than the ps3/360.)
Who, in their right mind, is going to pay £400 to "upgrade" from ps3/360 to something marginally better, when the nextbox/ps4 will be available for about the same price (or cheaper) about a year later?
You'd have to be insane, or on benefits. Or both.
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Struggling to see what's premium about the premium bundle, btw. Assuming the internal memory works the same way as external memory (ie has no advantages over it) then you're going to end up with a hard drive plugged in to either console - so why would anyone pay an extra fifty quid for a few extra gig and a different colour scheme?...
Oh. It's Nintendo, isn't it. They make a living from squeezing extra money from people for bringing out their machines in different colours. Expect limited editions in new colours next year. For a premium price, natch...