KEY LARGO, Fla. — Leave the passport at home: The Florida Keys' first all-inclusive resort is open for business. The Bungalows Key Largo is billed as a taste of the Caribbean that's just a drive away.

Vacations are all about splurging and indulgence, which is why all-inclusive hotels are so alluring. Another round of poolside piña coladas or an afternoon taco plate? Both, thank you very much! While ...