Soundwave on 17 August 2018
PS4 drop shows how important the Pro model (shortages) are to the PS4.
The Pro and X models are what are keeping the PS4 and XBox sales high.
Nintendo would be well advised to have a Switch Pro ready for 2020 so that they can get a similar hardware boost and prevent against the usual year 4/5/6 drop off.
Hardware refreshes are here to stay.
Essay Pro