One could live in Florida more cheaply than in the DR.
There are items more expensive in the DR, with cars being a major one. However, if you add up fine dining, health care, monthly maintenance on home, and housing, the DR is a bargain. Are you comparing an average, eating at home lifestyle in Florida with country club living in the DR? Many spend more in the DR, ie., golf everyday, spa services, etc... but that is a different statement.