Again, because they are not dropping the prices .. Xbox one should get price drop last year to 199$ or even 149$ for the base model
and the PS4 at least tp 199$. Then XB1 would do at least 1 or even 2M more, and PS4 at least some 5M more units.
I'm pretty sure Xbox One has gone on sale for $199 and even less numerous times.
Bet with Liquidlaser: I say PS5 and Xbox Series will sell more than 56 million combined by the end of 2023.