Second answer to the same quote :)
Just glancing quickly at the numbers it seems like we might be able to compare the attach rate of the two systems to determine if Switch users actually buy more games. Using the Resetera link I posted earlier:
https://www.resetera.com/threads/so...sold-79m-total-sotware-–-246-9-million.38902/
We can see at the bottom of the first post, that when PS4 had sold 18.5 millions systems, they sold 81.8 million games. Switch was at 17.79 million systems sold by March 31 2018:
https://www.vg247.com/2018/04/26/switch-sales-over-17m-units-breath-of-the-wild/
And we can see in the same link/picture that Nintendo sold 68.9 million Switch games. So at almost the same install base, Switch users are buying less games than PS4 users did at (roughly) the same install base.
We don't know what will happen in the future, but if Nintendo succeeds in selling 20 million Switch systems by March 31 2019 and 100 million games as they predict, they'll have sold 37.79 million Switches and 168.9 million games. Using the Resetera link above we can compare that to how many games PS4 users were buying, when roughly the same amount of systems were sold and we see, that when PS4 was at 40 million they sold 271 million games. So Nintendo will have to outperform their prediction significantly, if they are to sell as much software as PS4 did, when both systems hit a 40 million systems install base.
So Switch users are not buying more games than PS4 users were, when they were at the same install base.