If you are not a liberal, buying a boat can help you escape the zombie apocalypse. Liberals are immune to zombies because zombies eat brains. This is also why non-leftists need to buy plenty of weapons to defend our tasty brains.
Remember Liberals, on occasion a genetic singularity occurs and you spawn a non-Liberal. This means your children could have brains and need to be defended. We will defend your children from the zombies. Just buy us a little ammo with your EBT cards ok? Oh, that's spelled E B T.