Landing crafts are specially designed vessels used for hauling cargo, trucks, containers, building materials, cars and passengers. Landing crafts are versatile ships that can be used in ports that do not have fully developed wharfs and docks. This makes landing crafts very useful in development in the islands. 

The landing crafts used today are much bigger versions of the ones used during the war. While landing crafts used during World War 2 carried only soldiers or tanks, the modern landing crafts are big enough to accomodate buses and trucks. There's usually a second deck for passengers. 

A brand new landing craft will cost millions of dollars. US$5,000,000 should be a rough estimate of a regular sized landing craft if you build one in North America.

Buying used landing crafts is a viable option for those who are practical minded. 

Now my good friend who happens to be living in the beautiful Trinidad and Tobago happen to sell landing crafts for a living. His website is at http://www.landingcrafts.net