It is a lot easier to register a boat in WI.
It is cheaper to register a boat in WI.
You do not need to title, register, or put plates on a trailer under 3000# gross, in WI.
If you bought a boat without a title, or a trailer without a title, you will have a heck of a time registering either in Il.
If you plan on leaving the boat in WI, the answer is easy, register in WI.
The only problem that could arise, is if you are towing in IL, your residence is in IL, and your tow vehicle is registered in IL.
In this case, the trooper will tell you that your trailer needs to be registered and plated in IL.
He may, or may not, give you a ticket.
If you have a title for the boat and trailer, go ahead and register in IL, then you can take it anywhere with no worries.
We ( WI ), don't have a bunch of cops looking at all the cabins to see how long a boat from out of state has been parked there.
Actually, we rather enjoy you coming here to spend all your vacation money.
