I think the big problem talking about the differences between catamarans and monohulls is that each can vary significantly in design, features, expense, etc. There certainly are examples of both that safely and routinely have circumnavigated. There are also examples of both that routinely do not handle weather
well at all.
Personally, I'd love to have a catamaran as a retirement
boat. I like life better flat than at 35 degrees. For long term living, I like the way they spread sleeping accomodations out more like a home does. I like that you just step into the saloon
instead of having to negotiate steep steps. I like the panoramic view from inside. I love gunkholing in the Bahamas
and love the shallow draft
many catamarans offer.
So why did I just purchase
another cruising monohull? In a word: Cost. As much as I'd like a catamaran, the fact is I can purchase
a monohull that will get me where I want to go just fine for 1/4 the price
. Is a catamaran still in the future some day? Only time will tell.
What I strongly believe is that for the most part, something that makes your dream happen now is a better option than waiting until you can afford that same dream in more style. That may never come.
I think what is right for you depends on your own priorities and your personal finances.