I am not 100% sure about this, but I believe the extra funding is state dependent. In some state schools, the state provides additional money to their resident students but it's not the case in all state schools. I have hard that Florida state university provide some sort of extra money to in state students in both undergrad and medical programs. In general, the admission standards should be the same for most schools, they will reward you based on the academic merit first prior to putting residential status into consideration.