How many NX's does Nintendo need to sell for it to be considered a success?

[Alby_da_Wolf]

RolStoppable said:

Alby_da_Wolf said:

Oh. But you cannot expect people that bought a Wii U and a 3DS to buy two NWs each, and while home consoles performance  can and must be bettered a lot compared to Wii U, a decline in portable doesn't look avoidable, unless it turn out that 3DS too performed a lot lower than its full potential.
But wait, if NX will be a portable with an optional docking station providing more GPU power and connections for home use, will you consider portable NX plus docking station as two HW units? If yes, I can agree on your numbers again.

Not everyone who owned both a Wii U and 3DS will buy two NX devices, yes. But do you still not get it? Nintendo is supposed to sell NX also to people who own neither a Wii U or a 3DS.

I wouldn't count docking stations and/or supplemental computing devices as separate NX units.

Sure I get it, success would be if Ninty sells NX also to new users and these ones exceed those that abandon Ninty. Surely beating also combined numbers of devices would be preferable, but I'd consider, if not a full success, at least already not a failure beating the old number of users. Maybe the really critical part of a unified library is another one, managing to beat the combined SW sales of the old devices. Should prevail a typically portable attach rate, it would be a huge drop in total SW sales compared to the previous gens.