Dene wrote:
I've been doing some research on various powerboat catamarins and have
noticed they have one thing in common....exorbant price. At least a third
higher than a monohull.

Anybody know why?

-Greg

(Gremlins ate my first reply, sorry if it shows up later and this turns
out to be a duplicate).

IMO, cats are only "at least 1/3 higher than a monohull" if all you are
comparing is LOA.
If you compare total cockpit space, total interior, total deck space,
etc, you will usually find the cats are pretty competitive with larger
monohulls.