That is very true about the "simple tasks". I own a personal boat myself, and I really do not have a problem keeping up with the once a year registration stickers.
I know that one problem in my area is that a lot of the registration is handled by 3rd party companies and conglomerates of time share owners. This presents a problem when no-one knows where the registration is or who even takes care of it. I always end up with a stack of expired registrations and no current one. The problem doesn't seem to be getting better either.
Just keep them registered and we won't have a problem...

The other thing people don't seem to understand on the water is that a bow number is just like a license plate. The DMV doesn't let you design your own license plate for a reason. This is NOT a creative thing. It's putting a license plate on your boat so that we know who owns it, and can find it if we have to. I just had to say my piece about that because I come in contact with a LOT of creative bow numbers that are simply unreadable even when you are right next to the boat.