This stuff is always a little iffy because, unlike most consoles, the Switch didn't launch during the holidays. So time-aligning, the PS4 has had one more holiday season than the Switch. So, while useful, this data is not exactly apples to apples. I'm not saying I'm *sure* Switch would be ahead of PS4 if they had both launched during the same time of year, I'm just saying it's something to bear in mind for those that want to consider the bigger picture.