Just because it is busy in Playa, doesn't necessarily mean that the owners are making a profit. Rents on the Fifth are astronomical. I had heard a few years ago, that some of the larger spaces were renting for 30k U.S. a month, and recently I read that Burger King is paying 30k a month for their store on the 5th. That's a lot of burgers.
The grass is always greener...

Caribbean Colors Art Cafe, Caye Caulker
www.caribbeancolorsbelize.com
www.caribbean-colors.blogspot.com