Given those numbers, you'd have a statistical expectation of one life saved for every 150 hours spent. Say $100/hr for salaries+bennies for two parametics, 15K per life saved. I think it's worth it.
I wonder how overburned most areas are? I had a friend who was an EMT and said they really liked being called (didn't get the impression they were that busy) because it was far better to be safe than sorry and people were often too hesitant about calling for emergency services.
