The Isle Casino & Racing has created a bank of machines promising a 98 percent payback -- believed to be the highest advertised return in the history of Florida slots.

The payback rate is the rate that the machines, over time, pay back to customers. In this case, if you'd put in $100 time and time again, you'd get $98 back. Most Broward slots are at 90 to 92 percent. Casinos are required to post their overall payback rate near their entrance.

The bank of 10 games is in the $1 area, and is "very popular," said the Isle's Evan Lucash. They include "Double Diamond" and games from the "Triple 7" family.

“What we are trying to offer patrons is an excellent value for their gaming dollar,” he said. “If we continue to see a good response, we’d consider expanding it.”

But, again, regarding payback rates: There is no guarantee you're getting $98 back. There's no guarantee you're getting even $1 back. But over a long period of time...