I get why 16:10 is preferable (I'd like 4:3 even more, or even 1:1 on a desktop), what I don't understand is the incentive to push 16:9. Is it just because les

I get why 16:10 is preferable (I'd like 4:3 even more, or even 1:1 on a desktop), what I don't understand is the incentive to push 16:9. Is it just because less pixels -> fewer expenses.