>>2221282inflatable hull designs can be just packed away for winter without the need for storing the footprint of an entire boat + trailer. there are many smaller inflatable catamarans that can fit into just bags. Also you can transport them on the roof of a van so you don't need a trailer etc. (without sails or housing constructed, just the base inflatable and deck). You get more people / equipment onto a catamaran and they act as more of stable deck platform than a monohull.
