Rippem, in VA, if the boat is documented you do not have to register it with the DGIF; therefore, you do not have to pay sales tax. Saved me several grand. Also I am not required to have any State stickers or numbers on the boat, which is even better. AND, annual renewal with the CG is free. Can't beat that!
There are so many documented boats around these parts there is no hassle factor either.