There is not much to say here...the best advice I can give is don't buy any business which is less than 3 years old. At best it means the business isn't fun at all. At worst (and normally this is the true reason) it's because the business is a losing or break even proposition.
I am frankly tired of watching people start up businesses and then in under a year they have them "for sale" with any real estate broker desperate enough to take the listing. Often the listing is for an exorbitant sum of money. And, just as often the books are cooked to "Extremely Well Done."
If you're interested in purchasing a business on the island then make sure it has some real longevity. As I mentioned, 3 years is a fair minimum but 5 years or more of active, successful business activity is even better.