What I find especially interesting about speed cameras is how many people still continue to get caught by them.
Here is South Wales we have three police forces, all of them rather keen on the use of speed cameras. The fixed ones have been in place for years and yet they still detect 10,000's of people each year. The mobile ones are mostly situated in the same places, but they too are hugely successful in catching people who drive recklessly.
You would have thought that peoples driving habits would have changed but as a person who drives about 35,000 miles a year, I see people speeding, using Mobile phones, etc, etc every day I go out.
I was caught doing 50 in a 40 mph zone 9 years ago, and have never had a speeding conviction since ( touch wood ! )