Hi Guys and Girls , I have a plan and need some advice from the old salts

in 5 to 6 years i aim to purchase a cat or tri learn to sail and sail my way around Australia.I am looking at Trailable Tri,s due to the convenience and mobility they offer over cats.I like the idea of being able to beach a boat and sail in shallow water.What are some of the pro-s and Cons of Cats V Tri,s.
Thanks T