We pay for server costs, for people who develop and keep this game up. That's what s subscription is for and nothing else. We don't pay Blizzard to cater to our needs, we pay them so they can have the money to develop this game further.
When you go to a restaurant? Do you complain about not getting enough steak or potatoes on your plate because you paid for a meal and you think it should have more of a certain ingredient?