Symbicort has a counter, too. When it gets to the yellow area time to refill prescription...haha.
I've also had problems because my Proair was low. I agree that rescue inhalers should have counters...people don't have running tallies in their head as to how much they've used. If Symbicort and Advair have them, I don't see why Proair, Proventil, etc can't. It doesn't make sense to me, either.