It's the Holy Grail for cash-strapped localities: cameras, supplied by a private company, that snag red-light runners. The company takes a cut, the city gets the money, and it's win-win for everybody.
Red-light runners are one resource that South Florida possesses in an abundant, inexhaustible supply. Tapping into them is like harnessing the power of the sun.
Besides, everybody hates them, so it's like taxing child abuse or something. There's no constituency of red-light runners that will organize to push back against being targeted.
Another advantage I see is that, this being Florida, the rear-end collision side-effect of drivers slamming on their brakes at the last moment will be more pronounced than in other states where these cameras are being tried. Take into account all the usual text-messaging, phone-yakking, ingesting of dangerous drugs, and doing make-up while driving that happens in every state, and add to it the slower reaction time of a tailgating senior who is trying to get through the light because, like everybody else in Florida, it's important to get wherever you're going ahead of all the other drivers, and you've provided a stimulus for one of our major industries: personal injury lawsuits.
It's the gift that keeps on giving.