I would personally advise against doing destination weddings for videos. Only the very high end videographer/cinematographer will make money in destination wedding.
For our company, we film mostly local weddings. Same amount of work, same amount of pay, minus the travel, lost time, and etc.
There are many Filipino wedding videographer & cinematographer who makes a killing on destination weddings.
As well, constant travel will take a toll on your body. Unless you travel a preminum amount, is not really worth it in my opinion. However, if you want to explore the world then it will be a good way for you to run your business.