The underlying discussion of this whole thread is which will sell better, PS4 or Switch?  You can say that PS4 has impressive legs, but Switch should also be expected to have impressive legs.  That is because leading consoles almost always have impressive legs (by that standard). 

Switch is selling better than launch aligned PS4.  It is selling like a leading console.  We should expect it's legs to be impressive as well.  In fact, the Switch's legs are as likely to be better than the PS4's as they are likely to be worse.  When comparing leading consoles, PS4 is right in the middle.  That is why in the context of this thread it is misleading to say that PS4 has impressive, or even above average legs.  PS4 isn't more likely to have more impressive legs than the Switch.

Past Nintendo systems not having the longest legs doesn't mean Switch will follow suit.

That's the same logic that saw many people rule out BOTW selling over 10 million, simply cos "no Zelda ever has".

All bets are off with the Switch, it has shown time and again that it is quite unlike any previous Nintendo system.

I had a vision. My vision said 131,7M for the PS4
And 106,9M for The Switch.

So case closed.

You're welcome.

I just want both to keep selling like hotcakes so in the end we'll be able to say that all who said -consoles were dying- a few years ago were wrong.

No, 2019 is a little higher than ps4 2017. 2020 will be even higher.

Bookmarked for the future. Let's see how well this holds up...

You need to know I have a lot of visions of the future. Until now none of them have been true.

I do expect the Switch to be too low and PS4 too high, but we'll see how far off you were.

PS4 seems to lose momentum outside Europe quite fast. If we see a Switch Pro in 2020 or 2021 it could match PS4 sales in long term. If we don't see a Switch Pro and a successor instead, PS4 should sell most.

A Pro model is irrelevant to whether or not Switch passes PS4.