To be fair, this really does mean nothing. With such a low supply it's natural to sell out fast. Nintendo should've waited with the release for a few months. Nobody should be praising sold out stock. We should be condemning Nintendo's shitty management which will cause many gamers to not get one at launch. That is entirely on Nintendo.

What low supply? The PS4 sold 2.1 million units in its first month. Nintendo has an initial shipment of 2 million, with an additional 1 million units in reserve. 

Where are you getting 2m for 27 days from? Initial shipment doesn't mean that's all for the month.

"That system is expected to ship 2 million units before the fiscal year ends in March, Nintendo President Tatsumi Kimishima said in remarks accompanying the earnings"

That's from October, I have been out of the loop the last couple of weeks incase something else came to light however, but Nintendo forecasted 2 Million Switches shipped before the end of March.

There is no such thing as an audience dedicated to a console?Really?How long have you been on forums?

Outside of that blatant mistake, you are wrong about other things.First that when MH was on consoles(especially PS consoles), it never sold as good as the 3DS titles.So no "audience moved from sony to nintendo, if there was none to begin with.And while yes, the PSP versions did sell very well(at least portable 3rd did), it did so well because why?Because it was a portable.And why is that?Because the japanese audience prefers that kind of product.And please, citing the japanese forums as an argument, not to mention the part that I should be questioning if you saw that for yourself(and if you speak japanese by an extent), or just saw a screenshot of a single japanese forum that were just more pessimistic about it.But anyways...

Other problem is that you are thinking that the 3DS will canabilize the Switch sales.No it wont.At least not wont be that significant.The 3DS version and the PS4/Switch version will be very distinct.And the argument that DQ Heroes already brought the audience to the PS4 is nonsense,simply because they are spin-offs.I mean, just compare these spin-off sales compared to mainline ones, or even the remakes.Should give you a good idea that they didnt convince that many people to jump in.Not to mention that the Switch will also have the games(and they come together, no less).

So the idea that the game wont push consoles for a long while(and by that extent, I think you are implying that it will push PS4 consoles) is simply ridiculous.Im not saying the game wont sell well on the PS4, Im just saying that it has the chance to sell better than it.I mean, there is a reason this game was one of the first to be announced for the Switch....