I think nack is 320,000 because is bundled and is not sold separately.

Err... that depends if it keeps beeing bundled with the PS4 for free.

In fact, Knack didnt sell much more than 100 copies.

it is bundle, and lets be honest, rigth now there are nothing more to play on a PS4 :/

It was a limited bundle I believe. So never is likely.

Considering like only 150 (correct me if I m wrong) people actually bought the game without it being a bundle, I think not very likely

if it wasnt bundled Im sure the sales would be the same. People bought that bundle to play Knack so  if there was no bundle they all would have bought it seprately anyway =P

Bet they bought the bundle to own a PS4 and figured 'hey, free game.'

I wouldn't be earthshatteringly surprised if Knack eventually did better just because it's clear far more people will own PS4s than Wii Us, though.

never

What is that supposed to mean? 

Of course no one will buy it when they get it for free.

Never unless it's bundled