I travel frequently, and have certain communities I call home.
If you live long enough somewhere, and keep you eyes open, you know where the police like to park themselves, looking for violators, and you learn were all the cameras are set up.
Knowing the law enough, I have been able to get out of every camera based ticket issued. Sometimes its as simple as "ignoring" the ticket altogether when it comes in the mail.
Currently in Southern California, I have been making the rounds, and noticed that cameras, wherever they used to be, simply aren't any longer. I am more than happy to see these things gone.
Do you have them where you live? Does the city own them, or some 3rd party company offering a rev share with local officials? What's you opinion about having them, essentially replacing the need for a police officer witnessing your supposed violation, and personally issuing you the citation?