I don't own a PS4 but my FC mates who do told me that any PS4 games you play need to be installed on the PS4. As such, an SSD would be prohibitively expensive to even consider seeing how each game takes up in the range of 50GBs unless you only play 1-2 games at any given time. I don't know how long it takes to install and update though, just commenting on the SSD issue.