They don't?How so, if the Switch is beating both of them right now?
And how can you prove they are not? By the basic principle of competition, just being a product that is similar to the one the competition is selling, you are battling for the consumer money. So by that logic, if someone spends 300 dollars to buy a Switch, it stands to reason that it's 300 not spend buying a PS4/One.Just because the PS4 and Switch sold/are selling well, dosen't mean they couldn't have sold better if that competito didn't exist.
It's... common logic...
My (locked) thread about how difficulty should be a decision for the developers, not the gamers.