Should I buy a hybrid RV/boat or just tow a boat

I used to have a cult sailboat, a Montgomery 15 that I sold to a guy in Seattle sight unseen. I pulled the boat from Nevada to Seattle and slept in the V berth on the way. It was quite comfortable even in a boat that small. A 20 foot boat would be better for 2.

I had a Columbia 23 that slept 4, had a galley and a head in it. It would be a little heavy to use as an RV but was very comfortable on the water. I had it moored on Lake Tahoe for 5 years and would bring it home in the winter.