But then why they don't wait for the Xr? It is way cheaper than the Xs Max and has a 6.1'' display so it is bigger than the 5.5'' of the Plus models, even if they were used to the Plus they'd like the Xr
Impatience or they don’t want the “poor mans’” iPhone.
When the iPhone 5C came out I overheard some kids complaining their parents didn’t buy them a real iPhone.