I wondered that myself. I understand some motors may be a loss on the ones the sunk but there are many that just the boat was a loss and motors still salvageable.
If you are just curious about the hurricane or are looking for a project, here's some stuff to peruse.... Click on "Assets" at the top of the page to pick the category you are interested in. https://www.cooperss.com/assets?name=marine&id=1