You leave before the hurricane/storm - taking everything with you. Unlike a house which is stuck where it is!!!!
Mrs Dad and I have been in FL since 2010. Owned or had access to a boat since I was a kid in the late 60s early 70s. A couple things about the hurricanes. After moving here and the first couple storms came toward FL, at a day out you still don't know where and if it will hit. Newbs prepare only to take down the protection. If you are on a boat where do you go? If they would go south they'd take a chance it swerved and went south, if they go east into the gulf they might go right into it, if they go north they might be chased all the way up the coast. It isn't easy to outrun a storm in a boat. Plus, we have impact windows and sliders and a block house so the only hurricane that hit us didn't do anything to us.
There are two types of costs with a boat. One is the costs for not using it enough, the other costs are for using it a lot.
Had a boat and got rid of it and now am a member of a boat club. For what would've been a down payment on a boat and a monthly payment I can use the boat virtually as much as I want while only paying for the gas. I typically use the boats on weekdays and have had no problems securing the boat when I want to go out. AND, no issues with maintenance, hauling it to and from the boat ramps, no parking fees and no insurance fees. And I have access to more different types and sizes of boats than just what I had when I had a boat. Just an FYI.