I was at private hospital which seems to be a bit different in what was supplied (they supplied nappies, wipes, creams etc) and they did have formula which I used twice to comp feed when I got so hysterical I physically couldn't go through the pain at that stage.
I think hospitals should provide formula, it is a basic necessity and right to feed your child irrespective of your method. If you know by say day 2 that you are never going to go back to BF or you are sticking to FF then I think you it would be nice if you started to supply your own but not a necessity, but then I wouldn't ask for more cream after I ran out, I just used my own so that's more my nervousness of asking for things.
I would think that a hospital is either getting formula free or paying pittance for it so does it really matter the cost. If taxpayers money is going towards feeding our children in whatever way that is (formula, lactation consultants, whatever) then it's money well spent.