Yikes, that's a lot for materials. The nails are much quicker, but the screws are much more sturdy and will hold stronger and for longer, nails like to loosen over time.

Those strong winds are a force to be reckoned with. We had a few hurricanes hit the northeast where I live and even up here they uprooted trees and smashed them into homes, crushed cars, flying roof shingles were being flicked around outside, many homes flooded, tons of cars flooded out. Hurricanes are a spectacle to watch on video, but living through them is a totally different experience. It's intense, and the power outages for days after the fact are a whole problem in and of themselves.