Once again, this is a question with insufficient background information. If you are just looking for something to daysail off a fixed dock, get a trawler. If you intend to live aboard while anchoring in a Pacific atoll 500 miles from fuel, you might get an entirely different boat than if you are island-hopping in the Leewards.
In some circumstances, a cat is a great choice, and certainly better than a monohull. But I personally consider those circumstances relatively limited, unless you are considering the sort of "oceanic" cats the South Africans and to a lesser extent the French are building.
Tell us how you intend to *use* the boat, today and five years down the road, and we are generally happy to advise. I own a steel pilothouse, but it's not for the layout, and that pilothouse gets extremely toasty in the summer at dock, but then I don't anticipate being at dock, if you follow.