My mate has a brand new Caravan/ Lodge its over 13ft wide at Haggerston Castle, on a prime site, and its a lot more than £3k a year. His residence comes with all mod cons, and summat. Mood lighting breakfast bar dishwasher/ washing machine etc etc. I am amazed what they can produce out of a tin box, However, when it comes to what I call real craftmanship, boat building is in a class of its own IMHO. Hence the costs are much more as there are so many different shapes and sizes to consider and fit in.
My only concern at present is, very few, if any smaller craft are being built. Swancraft do/did have several smaller boats. so hopefully will remain in hire fleets, but I have my doubts.
Iain.