they are fun for practicing dock jump starts and keeping your port-a-potty clean (using the floating bathroom instead of your own). that is about it.
i do get a kick every time i see the porta-potty dump station on the sides of these things that always has a sign to go with it saying something like "This is not a fish cleaning station, for portable potty dump only" HAHAHAhahaha. and i bet it has been used that way too EEEEwwww. especially by those that can't even read/understand the sign. You can actually see the said station in that pic hahaha!